#include <bits/stdc++.h>

using namespace std;

int main() {
	string s;
	cin >> s;

	bool ok = false;
	for (int i = 0; i < (int)s.size()-2; i++) {
		if (s[i] == '5' && s[i+1] == '7' && s[i+2] == '5') {
			ok = true;
			break;
		}
	}

	if (ok) {
		puts("YES");
	} else {
		puts("NO");
	}

	return 0;
}