#include<iostream>
#include<string>

using namespace std;

int main()
{
	string A, B, answer;

	cin >> A >> B;

	for (int j = 0; j < A.length(); j++){

		answer = "NO";
		for (int i = 0; i < B.length(); i++){
			if (A[j] == B[i]){
				answer = "YES";
			}
		}
		if (answer == "NO") break;
	}

	cout << answer << endl;
}