diff --git a/README.md b/README.md
index 0d1e2368..22831b12 100644
--- a/README.md
+++ b/README.md
@@ -689,6 +689,11 @@ If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.u
   Specify `"strict"` to treat `foo.bar` as side-effect-free only when
   `foo` is certain to not throw, i.e. not `null` or `undefined`.
 
+- `reduce_funcs` (default: `true`) -- Allows single-use functions
+  to be inlined as function expressions when permissible.
+  Enabled by default.  Option depends on `reduce_vars` being enabled.
+  For speed critical code this option should be disabled.
+
 - `reduce_vars` (default: `true`) -- Improve optimization on variables assigned with and
   used as constant values.
 
diff --git a/lib/compress.js b/lib/compress.js
index 24c5be21..af4d4929 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -75,6 +75,7 @@ function Compressor(options, false_by_default) {
         properties    : !false_by_default,
         pure_getters  : !false_by_default && "strict",
         pure_funcs    : null,
+        reduce_funcs  : !false_by_default,
         reduce_vars   : !false_by_default,
         sequences     : !false_by_default,
         side_effects  : !false_by_default,
@@ -320,7 +321,7 @@ merge(Compressor.prototype, {
                         value = node.fixed_value();
                         if (value && ref_once(d)) {
                             d.single_use = value instanceof AST_Lambda
-                                || d.scope === node.scope && value.is_constant_expression();
+                                || d.scope === node.scope && value.is_constant_expression(compressor);
                         } else {
                             d.single_use = false;
                         }
@@ -2187,15 +2188,16 @@ merge(Compressor.prototype, {
 
     // determine if expression is constant
     (function(def){
-        function all(list) {
+        function all(compressor, list) {
             for (var i = list.length; --i >= 0;)
-                if (!list[i].is_constant_expression())
+                if (!list[i].is_constant_expression(compressor))
                     return false;
             return true;
         }
         def(AST_Node, return_false);
         def(AST_Constant, return_true);
-        def(AST_Lambda, function(scope){
+        def(AST_Lambda, function(compressor, scope){
+            if (!compressor.option("reduce_funcs")) return false;
             var self = this;
             var result = true;
             self.walk(new TreeWalker(function(node) {
@@ -2218,20 +2220,21 @@ merge(Compressor.prototype, {
             }));
             return result;
         });
-        def(AST_Unary, function(){
-            return this.expression.is_constant_expression();
+        def(AST_Unary, function(compressor){
+            return this.expression.is_constant_expression(compressor);
         });
-        def(AST_Binary, function(){
-            return this.left.is_constant_expression() && this.right.is_constant_expression();
+        def(AST_Binary, function(compressor){
+            return this.left.is_constant_expression(compressor)
+                && this.right.is_constant_expression(compressor);
         });
-        def(AST_Array, function(){
-            return all(this.elements);
+        def(AST_Array, function(compressor){
+            return all(compressor, this.elements);
         });
-        def(AST_Object, function(){
-            return all(this.properties);
+        def(AST_Object, function(compressor){
+            return all(compressor, this.properties);
         });
-        def(AST_ObjectProperty, function(){
-            return this.value.is_constant_expression();
+        def(AST_ObjectProperty, function(compressor){
+            return this.value.is_constant_expression(compressor);
         });
     })(function(node, func){
         node.DEFMETHOD("is_constant_expression", func);
@@ -3533,7 +3536,7 @@ merge(Compressor.prototype, {
         var stat = fn instanceof AST_Function && fn.body[0];
         if (compressor.option("inline") && stat instanceof AST_Return) {
             var value = stat.value;
-            if (!value || value.is_constant_expression()) {
+            if (!value || value.is_constant_expression(compressor)) {
                 var args = self.args.concat(value || make_node(AST_Undefined, self));
                 return make_sequence(self, args).optimize(compressor);
             }
@@ -4260,7 +4263,7 @@ merge(Compressor.prototype, {
                 if (d.escaped && d.scope !== self.scope || recursive_ref(compressor, d)) {
                     d.single_use = false;
                 } else if (d.scope !== self.scope || d.orig[0] instanceof AST_SymbolFunarg) {
-                    d.single_use = fixed.is_constant_expression(self.scope);
+                    d.single_use = fixed.is_constant_expression(compressor, self.scope);
                     if (d.single_use == "f") {
                         var scope = self.scope;
                         do {
diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index 34489717..329d98f9 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -3037,6 +3037,7 @@ issue_2437: {
         inline: true,
         join_vars: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         sequences: true,
diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
index ebb0b8fa..e2e4ea46 100644
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -734,6 +734,7 @@ assign_chain: {
 issue_1583: {
     options = {
         keep_fargs: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -1114,6 +1115,7 @@ issue_2105_1: {
         collapse_vars: true,
         inline: true,
         passes: 3,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         unused: true,
@@ -1156,6 +1158,7 @@ issue_2105_2: {
         passes: 3,
         properties: true,
         pure_getters: "strict",
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         unsafe: true,
diff --git a/test/compress/evaluate.js b/test/compress/evaluate.js
index 64728c06..00f08947 100644
--- a/test/compress/evaluate.js
+++ b/test/compress/evaluate.js
@@ -663,6 +663,7 @@ call_args: {
     options = {
         evaluate: true,
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
     }
@@ -686,6 +687,7 @@ call_args_drop_param: {
         evaluate: true,
         inline: true,
         keep_fargs: false,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
diff --git a/test/compress/functions.js b/test/compress/functions.js
index c5aab171..c30283af 100644
--- a/test/compress/functions.js
+++ b/test/compress/functions.js
@@ -154,6 +154,7 @@ function_returning_constant_literal: {
         inline: true,
         passes: 2,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -305,6 +306,7 @@ issue_2084: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         sequences: true,
         side_effects: true,
@@ -515,6 +517,7 @@ issue_2428: {
         inline: true,
         passes: 3,
         pure_getters: "strict",
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
diff --git a/test/compress/hoist_props.js b/test/compress/hoist_props.js
index ccfc76f8..edef696d 100644
--- a/test/compress/hoist_props.js
+++ b/test/compress/hoist_props.js
@@ -3,6 +3,7 @@ issue_2377_1: {
         evaluate: true,
         inline: true,
         hoist_props: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -35,6 +36,7 @@ issue_2377_2: {
         inline: true,
         hoist_props: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -66,6 +68,7 @@ issue_2377_3: {
         inline: true,
         hoist_props: true,
         passes: 3,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -163,6 +166,7 @@ direct_access_3: {
 single_use: {
     options = {
         hoist_props: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -293,6 +297,7 @@ contains_this_1: {
         hoist_props: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -318,6 +323,7 @@ contains_this_2: {
         hoist_props: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -345,6 +351,7 @@ contains_this_3: {
         hoist_props: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -376,6 +383,7 @@ new_this: {
         hoist_props: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
diff --git a/test/compress/issue-1787.js b/test/compress/issue-1787.js
index 2b5372be..fcef6148 100644
--- a/test/compress/issue-1787.js
+++ b/test/compress/issue-1787.js
@@ -2,6 +2,7 @@ unary_prefix: {
     options = {
         evaluate: true,
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
diff --git a/test/compress/issue-281.js b/test/compress/issue-281.js
index 65871a84..6a93136f 100644
--- a/test/compress/issue-281.js
+++ b/test/compress/issue-281.js
@@ -3,6 +3,7 @@ collapse_vars_constants: {
         collapse_vars: true,
         evaluate: true,
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -240,6 +241,7 @@ negate_iife_issue_1073: {
         evaluate: true,
         inline: true,
         negate_iife: true,
+        reduce_funcs: true,
         reduce_vars: true,
         sequences: true,
         unused: true,
@@ -267,6 +269,7 @@ issue_1288_side_effects: {
         evaluate: true,
         inline: true,
         negate_iife: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         unused: true,
@@ -299,6 +302,7 @@ inner_var_for_in_1: {
     options = {
         evaluate: true,
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
     }
     input: {
@@ -330,6 +334,7 @@ issue_1595_3: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
diff --git a/test/compress/properties.js b/test/compress/properties.js
index ab202525..f2e59321 100644
--- a/test/compress/properties.js
+++ b/test/compress/properties.js
@@ -833,6 +833,7 @@ lhs_prop_2: {
         evaluate: true,
         inline: true,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         unused: true,
@@ -879,6 +880,7 @@ prop_side_effects_1: {
         evaluate: true,
         inline: true,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -915,6 +917,7 @@ prop_side_effects_2: {
         inline: true,
         passes: 2,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js
index e84ac6cb..b8a84dbd 100644
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -1351,6 +1351,7 @@ defun_inline_3: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         unused: true,
@@ -1373,6 +1374,7 @@ defun_inline_3: {
 defun_call: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -1400,6 +1402,7 @@ defun_call: {
 defun_redefine: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -1433,6 +1436,7 @@ defun_redefine: {
 func_inline: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -1460,6 +1464,7 @@ func_inline: {
 func_modified: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -2041,6 +2046,7 @@ redefine_arguments_2: {
         evaluate: true,
         inline: true,
         keep_fargs: false,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -2079,6 +2085,7 @@ redefine_arguments_3: {
         inline: true,
         keep_fargs: false,
         passes: 3,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -2154,6 +2161,7 @@ redefine_farg_2: {
         evaluate: true,
         inline: true,
         keep_fargs: false,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -2192,6 +2200,7 @@ redefine_farg_3: {
         inline: true,
         keep_fargs: false,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         sequences: true,
         side_effects: true,
@@ -2648,6 +2657,7 @@ boolean_binary_assign: {
 cond_assign: {
     options = {
         evaluate: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -2671,6 +2681,7 @@ cond_assign: {
 iife_assign: {
     options = {
         evaluate: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -2701,6 +2712,7 @@ iife_assign: {
 
 issue_1850_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: false,
         unused: true,
@@ -2724,6 +2736,7 @@ issue_1850_1: {
 
 issue_1850_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: "funcs",
         unused: true,
@@ -2746,6 +2759,7 @@ issue_1850_2: {
 
 issue_1850_3: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: "vars",
         unused: true,
@@ -2769,6 +2783,7 @@ issue_1850_3: {
 
 issue_1850_4: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -2792,6 +2807,7 @@ issue_1850_4: {
 issue_1865: {
     options = {
         evaluate: true,
+        reduce_funcs: true,
         reduce_vars: true,
         unsafe: true,
     }
@@ -2895,6 +2911,7 @@ accessor_2: {
     options = {
         collapse_vars: true,
         evaluate: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -2920,6 +2937,7 @@ accessor_2: {
 
 for_in_prop: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
     }
     input: {
@@ -2947,6 +2965,7 @@ obj_var_1: {
     options = {
         evaluate: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -2976,6 +2995,7 @@ obj_var_2: {
         inline: true,
         passes: 2,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3002,6 +3022,7 @@ obj_arg_1: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3033,6 +3054,7 @@ obj_arg_2: {
         inline: true,
         passes: 2,
         properties: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3060,6 +3082,7 @@ func_arg_1: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3084,6 +3107,7 @@ func_arg_2: {
         evaluate: true,
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3105,6 +3129,7 @@ func_arg_2: {
 
 regex_loop: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3241,6 +3266,7 @@ const_expr_1: {
 const_expr_2: {
     options = {
         evaluate: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unsafe: true,
@@ -3277,6 +3303,7 @@ escaped_prop_1: {
         evaluate: true,
         inline: true,
         pure_getters: "strict",
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3302,6 +3329,7 @@ escaped_prop_1: {
 
 escaped_prop_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3336,6 +3364,7 @@ escaped_prop_2: {
 
 issue_2420_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3378,6 +3407,7 @@ issue_2420_1: {
 
 issue_2420_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3420,6 +3450,7 @@ issue_2420_2: {
 
 issue_2423_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3444,6 +3475,7 @@ issue_2423_1: {
 issue_2423_2: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3467,6 +3499,7 @@ issue_2423_2: {
 
 issue_2423_3: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3485,6 +3518,7 @@ issue_2423_3: {
 issue_2423_4: {
     options = {
         inline: true,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3505,6 +3539,7 @@ issue_2423_5: {
     options = {
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3543,6 +3578,7 @@ issue_2423_6: {
     options = {
         inline: true,
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         side_effects: true,
         toplevel: true,
@@ -3583,6 +3619,7 @@ issue_2423_6: {
 
 issue_2440_eval_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3613,6 +3650,7 @@ issue_2440_eval_1: {
 
 issue_2440_eval_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3643,6 +3681,7 @@ issue_2440_eval_2: {
 
 issue_2440_with_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3669,6 +3708,7 @@ issue_2440_with_1: {
 
 issue_2440_with_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3695,6 +3735,7 @@ issue_2440_with_2: {
 
 issue_2442: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3709,6 +3750,7 @@ issue_2442: {
 
 recursive_inlining_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3729,6 +3771,7 @@ recursive_inlining_1: {
 
 recursive_inlining_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3751,6 +3794,7 @@ recursive_inlining_2: {
 recursive_inlining_3: {
     options = {
         passes: 2,
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3788,6 +3832,7 @@ recursive_inlining_3: {
 
 recursive_inlining_4: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3834,6 +3879,7 @@ recursive_inlining_4: {
 
 recursive_inlining_5: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3887,6 +3933,7 @@ recursive_inlining_5: {
 
 issue_2450_1: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3910,6 +3957,7 @@ issue_2450_1: {
 
 issue_2450_2: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3932,6 +3980,7 @@ issue_2450_2: {
 
 issue_2450_3: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         unused: true,
     }
@@ -3962,6 +4011,7 @@ issue_2450_3: {
 
 issue_2450_4: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -3995,6 +4045,7 @@ issue_2450_4: {
 
 issue_2450_5: {
     options = {
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -4030,6 +4081,7 @@ issue_2450_5: {
 issue_2449: {
     options = {
         passes: 10,
+        reduce_funcs: true,
         reduce_vars: true,
         toplevel: true,
         unused: true,
@@ -4061,3 +4113,74 @@ issue_2449: {
     }
     expect_stdout: "PASS"
 }
+
+perf_1: {
+    options = {
+        passes: 10,
+        reduce_funcs: true,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        function foo(x, y, z) {
+            return x < y ? x * y + z : x * z - y;
+        }
+        function indirect_foo(x, y, z) {
+            return foo(x, y, z);
+        }
+        var sum = 0;
+        for (var i = 0; i < 1e7; ++i) {
+            sum += indirect_foo(i, i+1, i*3);
+        }
+        console.log(sum);
+    }
+    expect: {
+        function indirect_foo(x, y, z) {
+            return function(x, y, z) {
+                return x < y ? x * y + z : x * z - y;
+            }(x, y, z);
+        }
+        var sum = 0;
+        for (var i = 0; i < 1e7; ++i)
+            sum += indirect_foo(i, i + 1, 3 * i);
+        console.log(sum);
+    }
+    expect_stdout: "333333483333479600000"
+}
+
+perf_2: {
+    options = {
+        passes: 10,
+        reduce_funcs: false,
+        reduce_vars: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        function foo(x, y, z) {
+            return x < y ? x * y + z : x * z - y;
+        }
+        function indirect_foo(x, y, z) {
+            return foo(x, y, z);
+        }
+        var sum = 0;
+        for (var i = 0; i < 1e7; ++i) {
+            sum += indirect_foo(i, i+1, i*3);
+        }
+        console.log(sum);
+    }
+    expect: {
+        function foo(x, y, z) {
+            return x < y ? x * y + z : x * z - y;
+        }
+        function indirect_foo(x, y, z) {
+            return foo(x, y, z);
+        }
+        var sum = 0;
+        for (var i = 0; i < 1e7; ++i)
+            sum += indirect_foo(i, i + 1, 3 * i);
+        console.log(sum);
+    }
+    expect_stdout: "333333483333479600000"
+}