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

int v[] = {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};
string s;
int main()
{
    int t;
    fin >>t;
    for (int r=1;r<=t;++r){
        fin >>s;
        int n=s.size ();
        int pos;
        if (n==1)
            pos=s[n-1]-'0';
        else
            pos=s[n-1]-'0'+(s[n-2]-'0')*10;
        fout <<v[pos]<<'\n';
    }
    return 0;
}