#include <bits/stdc++.h>
using namespace std;

int main() {
  string s; cin >> s;
  if (s.size() <= 2) {
    cout << "NO" << endl;
    return 0;
  }
  for (int i = 0; i < s.size() - 2; i++) {
    if (s[i] == '5' && s[i+1] == '7' && s[i+2] == '5') {
      cout << "YES" << endl;
      return 0;
    }
  }
  cout << "NO" << endl;
  return 0;
}