#include <bits/stdc++.h>

using namespace std;

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