text: module.exports = function zeros(expression) {
    const numbers = expression.split("*");
    let fives = 0;
    let twos = 0;
    numbers.forEach(element => {
      let currentElem = parseInt(element);
      if (element[element.length - 2] === "!") {
        if (currentElem % 2 === 0) {
          twos += Math.floor(currentElem / 2) + Math.floor(currentElem / 4);
          fives += Math.floor(currentElem / 10) + Math.floor(currentElem / 50);
        } else {
          fives += Math.floor(currentElem / 5) - Math.floor(currentElem / 10);
          fives += Math.floor(currentElem / 25) - Math.floor(currentElem / 50);
        }
      } else {
        twos += Math.floor(currentElem / 2) + Math.floor(currentElem / 4);
        fives += Math.floor(currentElem / 5) + Math.floor(currentElem / 25);
      }
    });
    return fives < twos ? fives : twos;
  };
  