PTIT013A - Bài A - Số may mắn

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

int main () {
    string s;

    int t;
    cin>>t;
    for (int i=1; i<=t; i++) {
        cin>>s;
        int len = s.length();
        if (s[len-1]=='6' && s[len-2]=='8') {
            cout<<"1"<<endl;
        } else cout<<"0"<<endl;
    }
    return 0;
}