#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
#include <string>
#include <vector>
#include <iostream>
#include <stdlib.h>

using namespace std;

int main()
{
  string s; cin >> s;
  bool ans = false;
  int n = s.length()-2;

  for(int i=0;i<n && !ans ; i++){
    if( s[i] == '5' && s[i+1] == '7' && s[i+2] == '5' ){
      ans = true;
    }
  }


  if(ans)
    cout << "YES";
  else
    cout << "NO";

  cout << endl;

  return 0;
}