http://codegolf.stackexchange.com/questions/28249/appended-numbers-game
JavaScript
var t=[],q=1;function f(a,c){var x=a.toString().split(''),r='',p=parseInt;for(y in x){var i=p(y);if(i){r+=(p(x[i])+p(x[i-1])).toString();}}if(c!=0&&a>10){t.push(q+++':'+r+'\n');if(q>6){t.shift()}f(r,c-1);}console.log(t.join(',').replace(/,/g,''))}
f(3554,21);