using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static System.Math;

public static class P
{
    public static void Main()
    {
        var abc = Console.ReadLine().Split().Select(int.Parse).ToArray();

        Console.WriteLine(abc[0] + abc[1] == abc[2] ? "Correct" : "Incorrect");
    }
}