#include  <iostream>
#include    <string>
using namespace std;

///////////////////////////////////////////
enum class month : int                   //
{
         January = 1,
        February,
           March,
           April,
             May,
            June,
            July,
          August,
       September,
         October,
        November,
        December
};


////////////////////////////////////////////////////////
string get_month(month m)                             //
{

    switch(m)
    {
        case month::   January:  return   "Январь";
        case month::  February:  return  "Февраль";
        case month::     March:  return     "Март";
        case month::     April:  return   "Апрель";
        case month::       May:  return      "Май";
        case month::      June:  return     "Июнь";
        case month::      July:  return     "Июль";
        case month::    August:  return   "Август";
        case month:: September:  return "Сентябрь";
        case month::   October:  return  "Октябрь";
        case month::  November:  return   "Ноябрь";
        case month::  December:  return  "Декабрь";
    }
}




////////////////////////////////////////////////////////
int main()                                            //
{

    setlocale(LC_ALL, "rus");

    int                 nNum;
    month           monthNum;
    string         monthName;

    while(true)
    {
        cout << "Введите номер месяца: ";
        cin  >>  nNum;

        monthNum = static_cast<month>(nNum);

        if(monthNum > month::December)
        {
            cout << "Неправильный номер!" << endl;
        }

        if(monthNum < month::January)
        {
             cout << "До свидания!" << endl;
             break;
        }

        monthName = get_month(monthNum);

        cout << " = " << monthName << endl;
    }

return 0;
}