#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>
#include <vector>
#include <algorithm>
#include <queue>
#include <functional>
#include <map>


using namespace std;

#define MOD 1000000007
#define INF 2147483647
#define ll long long

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

	int cnt = 0;
	for (int i = 0; i < s.size(); i++) {
		if (cnt == 0 && s[i] == '5') {
			cnt++;
		} else if (cnt == 1) {
			if (s[i] == '7') {
				cnt++;
			}
			else {
				cnt = 0;
			}
		}
		else if (cnt == 2) {
			if (s[i] == '5') {
				cnt++;
				break;
			}
			else {
				cnt = 0;
			}
		}
	}
	if (cnt == 3) {
		cout << "YES" << endl;
	}
	else {
		cout << "NO" << endl;
	}



	return (0);
}