The Tor Browser / file revision

 actual = '';

 expected = '10,19,100199,2001001999,30020010019999,400300200100199999,5004003002001001999999,60050040030020010019999999,700600500400300200100199999999,8007006005004003002001001999999999,90080070060050040030020010019999999999,';

 function f() {

   var x = 10;

   var g = function(p) {

     for (var i = 0; i < 10; ++i)

       x = p + i + '';

   }

   for (var i = 0; i < 10; ++i) {

     appendToActual(x);

     g(100 * i + x);

   }

   appendToActual(x);

 }

 f();

 assertEq(actual, expected)