#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{
	int A,B,C,D,E,F,G;
	cin>>A>>B>>C>>D>>E>>F>>G;
	if (500*A+100*B+50*C+10*D+5*E+1*F>=G){
		cout<<"YES"<<endl;
	}else{
		cout<<"NO"<<endl;
	}
	return 0;
}