text: module.exports = function reverse (n) {
      let strIn = '';
      let strOut = '';
      if (n > 0) {
          strIn += n;
      } else {
          strIn += -n;
      }; 
      for (let i = strIn.length-1; i >= 0; i --) {
          strOut += strIn[i];
      }
      return + strOut
  }
  