#include <bits/stdc++.h>
int A, C;
using namespace std;

int main() {
	string a;
	cin >> a;
	for (int i = 0; i < 5; i++) {
		if (a[i] == 'A')
			A++;
		if (a[i] == 'C')
			C++;
	}
	if (A == 0 && C == 0)
		cout << "No" << endl;
	else
		cout << "Yes" << endl;
	return 0;
}