kghost

#! /bin/bash

for i in {1..20} 
do
        for j in {1..20}
        do
                echo $((i+j)) $i $j 
        done
done | sort -n | while read sum i j
do

Gozala

// Lack of tail call optimization in JS
var sum = function(x, y) {
  return y > 0 ? sum(x + 1, y - 1) :
         y < 0 ? sum(x - 1, y + 1) :
         x
}

sum(20, 100000) // => RangeError: Maximum call stack size exceeded

// Using workaround