using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter a character");

        int c1=Int32.Parse(Console.ReadLine());

        if(c1==1||c1==3||c1==5||c1==7||c1==8||c1==10||c1==12)

        Console.WriteLine("It has 31 days");

        else if(c1==4||c1==6||c1==9||c1==11)

        Console.WriteLine("It has 30 days");

        else if(c1==2)

        Console.WriteLine("It has 28 or 29 days");

        else 

        Console.WriteLine("Invalid input");

    }

}