#include<cstdio>
#include <iostream>
#include<algorithm>
#include<string>
#include<queue>
#include<vector>
#include<functional>
#include<cmath>
#include<map>
#include<stack>
#include<set>
#include<numeric>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> Pr;

string A, B;
map<char, int> m;

int main()
{
	cin >> A >> B;

	for (int i = 0; i < B.size(); i++) {
		if (A.find(B[i]) == string::npos || 
			B.find(A[i]) == string::npos) {
			cout << "NO" << endl;
			return 0;
		}
	}
	cout << "YES" << endl;
	return	0;
}