#include<bits/stdc++.h>
using namespace std;
int main(){
    int c,s,a,b,c;
    cin>>c>>s>>a>>b>>c;
    c=a+b+c;
    if(c<=20){
        cout<<"YES"<<endl;
    }
    else{
        cout<<"NO"<<endl;
    }
}
/**************************************************************
	Problem: 1634
	User: yangjunwen
	Language: C++
	Result: Compile Error
****************************************************************/