#include<bits/stdc++.h>
using namespace std;
int main()
{
    string s,s1,s2,s3,s4,s5;
    cin>>s;
    cin>>s1>>s2>>s3>>s4>>s5;
    for(int i=0; i<2; i++)
    {
        if(s[i]==s1[i] || s[i]==s2[i] || s[i]==s3[i] || s[i]==s4[i] || s[i]==s5[i] )
        {
            cout<<"YES"<<endl;
            return 0;
        }
        else if(s[i]==s1[i+1] || s[i]==s2[i+1] || s[i]==s3[i+1] || s[i]==s4[i+1] || s[i+1]==s5[i] )
        {
            cout<<"YES"<<endl;
            return 0;
        }
        else if(s[i+1]==s1[i] || s[i+1]==s2[i] || s[i+1]==s3[i] || s[i+1]==s4[i] || s[i+1]==s5[i] )
        {
            cout<<"YES"<<endl;
            return 0;
        }
        else if(s[i+1]==s1[i+1] || s[i+1]==s2[i+1] || s[i+1]==s3[i+1] || s[i+1]==s4[i+1] || s[i+1]==s5[i+1] )
        {
            cout<<"YES"<<endl;
            return 0;
        }
        else
        {
            cout<<"NO"<<endl;
            return 0;
        }
    }
}