int  main()  {
          int  month;
          std::string  s;
          if  (  !  (std::cin  >>  month)) {
                  s  =  "Invalid number";
          } else if  (month<1  ||  month>12) {
                  s  =  "Num  out  of  range";
          } else {
                  s  =  months[month-1];
          }
          std::cout  <<  s  <<  std::endl;
  }