using System;

​

public class MonthsNumberUsingEnums

{

    public static void Main()

    {

        var i = 1;

        var rs = Int32.TryParse(Console.ReadLine(), out i);

        if (rs)

            Console.WriteLine($"Input was {i}, and corresponding month is {MonthName(i)}");

        else

            throw new ArgumentException("Input must be of type Integer");

    }

    private static string MonthName(int num)

    {

        if (num > 12)

            num %= 12;

        var a = (Months) num;

        return a.ToString();

    }

​

    private enum Months

    {

        January = 1,

        Febuary,

        March,

        April,

        May,

        June,

        July,

        August,

        September,

        October,

        November,

        December

    }

}