#include<iostream>
#include<string>

using namespace std;

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	string x;
	cin >> x;
	bool n = false;
	for(int i = 0; i < x.size()-2 && x.size() != 1; i++){
		if(x[i] == '5' && x[i+1] == '7' && x[i+2] == '5'){
			n = true;
			break;
		}
	}

	if(n){
		cout << "YES";
	}else{
		cout << "NO";
	}
	return 0;
}