#include<bits/stdc++.h>
using namespace std;
ifstream in("cifra.in");
ofstream out("cifra.out");

const int NMax = 100;
int Uc[] = {0, 1, 5, 2, 8, 3, 9, 2, 8, 7, 7, 8, 4, 7, 3, 8, 4, 1, 5, 4, 4, 5, 9, 6, 2, 7, 3, 6, 2, 1, 1, 2, 8, 1, 7, 2, 8, 5, 9, 8, 8, 9, 3, 0, 6, 1, 7, 0, 6, 5, 5, 6, 2, 5, 1, 6, 2, 9, 3, 2, 2, 3, 7, 4, 0, 5, 1, 4, 0, 9, 9, 0, 6, 9, 5, 0, 6, 3, 7, 6, 6, 7, 1, 8, 4, 9, 5, 8, 4, 3, 3, 4, 0, 3, 9, 4, 0, 7, 1, 0, 0};
int T;
char S[NMax+5];

int main() {
    in >> T;
    while (T--) {
        in >> S;
        int nr = 0, len;
        len = strlen(S);
        if (len > 1) {
            nr = S[len-2] - '0';
            nr *= 10;
        }
        nr += S[len-1] - '0';
        out << Uc[nr] << '\n';
    }
}