function repeat(operation, num) {
  if (num <= 0) {
    return;
  }
  operation();
  return function() {
    return repeat(operation, --num);
  };
}

function trampoline(fn) {
  var args = Array.prototype.slice.call(arguments, 1);
  var result = fn.apply(null, args);
  while (!!result) {
     result = result();
  }
}

module.exports = function(operation, num) {
  return trampoline(repeat, operation, num);
};