#include<bits/stdc++.h>
using namespace std;
int main(){
  vector<int>a(3),b(3);
  cin>>a[0]>>a[1]>>a[2]>>b[0]>>b[1]>>b[2];
  sort(a.begin(),a.end());
  sort(b.begin(),b.end());
  if(a==b){cout<<"Yes\n2\n";}
  else cout<<"NO\n";
}