using System;
using System.Linq;

class Program
{
    static void Main()
    {
        var inp = Console.ReadLine().Split().Select(int.Parse).ToArray();
        if (inp[0] + inp[1] == inp[2])
        {
            Console.WriteLine("Correct");
        }
        else
        {
            Console.WriteLine("Incorrect");
        }
    }
}