[j0hnik]

Dilettante_Pro,

var a = [0,1,2,3,4,5,6,7,8,9];
a.sort(_=>Math.random() - 0.5);
function f(a, k) {
  return a[a[a[a[a[a[a[a[a[a[a[k]]]]]]]]]]]+'-'+a.indexOf(k);
}
var i = 10;
while(i--) console.log(f(a,i));

вот вам тестер!