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

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'){
            cout<<"YES"<<endl;
            // system("pause");
            return 0;
        }
    }
    cout<<"NO"<<endl;
    // system("pause");
    return 0;
}