using System;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine().Split().Select(int.Parse).ToArray();
        var A = input[0];
        var B = input[1];
        var C = input[2];

        if (A + B == C) Console.WriteLine("Corrent");
        else Console.WriteLine("Incorrect");
    }
}