#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>

using namespace std;


int main() {

    string S;
    cin>>S;
    bool ok = false;
    for (int i = 2; i < S.size(); ++i) {
        if(S[i] == '5' and S[i-1] == '7' and S[i-2] == '5') {
            ok = true;
        }
    }

    if(ok) {
        cout << "YES" << endl;
    } else {
        cout << "NO" << endl;
    }

    return 0;
}