#include <iostream>
#include <string>
using namespace std;

int main()
{
    string s;
    cin >> s;

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