function toys(w) {
  let container = 1;
  const sortedWeights = w.sort((x, y) => x - y);
  let currentMinimum = sortedWeights[0] + 4;
  sortedWeights.forEach((value) => {
    if (value > currentMinimum) {
      currentMinimum = value + 4;
      container++;
    }
  });
  return container;
}