#include <bits/stdc++.h>
using namespace std;
typedef int64_t lint;

int main()
{
    string s;
    cin >> s;
    for (lint i = 0; i < lint(s.size()) - 2; i++)
    {

    
        if (s[i] == '5' && s[i + 1] == '7' && s[i + 2] == '5')
        {
            cout << "YES" << endl;
            // system("pause");
            return 0;
        }
    }
    cout << "NO" << endl;
    // system("pause");
    return 0;
}