#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

int main() {
	int cnt=0;
	string a, b;
	cin >> a;
	cin >> b;
	for(int i=0;i<a.size();i++){
		for(int j=0;j<b.size();j++){
			if(a[i] == b[j]){
				cnt++;
				break;
			}
		}
	}
	if(cnt == a.size()){
		cout << "YES" << endl;
	}else{
		cout << "NO" << endl;
	}
	return 0;
}