#include <bits/stdc++.h>

using namespace std;

int n, t;
char c[105];
int sol[] = {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 main()
{
    ifstream fin ("cifra.in");
    ofstream fout ("cifra.out");
    fin >> t;
    while(t--){
        fin >> c;
        if(strlen(c) > 1)
            n = (c[strlen(c)-2]-'0')*10+c[strlen(c)-1]-'0';
        else n = c[0]-'0';
        fout << sol[n] << "\n";
    }
    return 0;
}