Untitled

#include <iostream>
using namespace std;

int main() {
	int n, m, b = 0;
	char a;
	cin >> n >> m;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			cin >> a;
			if (a == 67 or a == 77 or a == 89) {
				b += 1;
			}
		}
	}
	if (b > 0) {
		cout << "#Color";
	}
	else {
		cout << "#Black&White";
	}
}