var a = 10;
function foo(){
var b = a + 20;
function innerFoo(){
var c = 10;
return b + c;
}
return innerFoo();
}
foo();
var a = 10;
function foo(){
var b = a + 20;
function innerFoo(){
var c = 10;
return b + c;
}
return innerFoo();
}
foo();