import java.util.*;
import java.io.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		PrintWriter ou = new PrintWriter(System.out);
		if(Integer.parseInt(sc.next()) + Integer.parseInt(sc.next()) == Integer.parseInt(sc.next())) ou.println("Correct");
		else ou.print("Incorrect");
		ou.flush();
		sc.close();
	}
}