﻿//Write a program that reads a year from the console and checks whether it is a leap one.

using System;

namespace _01.Leap_year
{
    class Program
    {
        static void Main(string[] args)
        {
            int year = int.Parse(Console.ReadLine());
            if (DateTime.IsLeapYear(year))
            {
                Console.WriteLine("Leap");
            }
            else
            {
                Console.WriteLine("Common");
            }
        }
    }
}
