#include <bits/stdc++.h>
#include <iostream>

using namespace std;

void isOK(string table,string cards,int srank,int sshape){
    if (table[0]==cards[srank] || table[1]==cards[sshape]){
        cout << "YES";
        return;
    }else if (sshape > cards.size() || srank > cards.size()){
        cout << "NO";
        return;
    }else{
        return isOK(table,cards,srank+2,sshape+2);
    }


}

int main()
{
    string table,cards;
    getline(cin,table);
    getline(cin,cards);
    isOK(table,cards,0,1);


    return 0;
}