text: /**
   * Created by denistrofimov on 28.01.16.
   */
  
  module.exports = function () {
  
      function random(low, high) {
          return Math.floor(Math.random() * (high - low + 1) + low);
      }
  
      return function (len) {
          var numbers = new Array(len);
          for (var i = 0; i < numbers.length; i++)
              numbers[i] = random(0, 9);
          return numbers.join('');
      };
  };