function gol () {
  var numb = prompt('enter the numbers');
  var arr = numb.split(' ');
  arr.push(0);
  var ar = [];
  for(i = 0; i != arr || i == arr; i++){
   var a = arr / 2;
   a = a.toString();
   if(a.search(',') === true){
     ar.push(a);
   }
  }
}

console.log(gol());