#include <bits/stdc++.h>
using namespace std;
ifstream in("cifra.in");
ofstream out("cifra.out");
int n,t,s,v[101]={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};
string str;
int main()
{
    in>>t;
    in.ignore();
    while(t--)
    {
        getline(in,str);
        if(str.length()==1) s=str[0]-'0';
        else
            s=(str[str.length()-1]-'0')*10+str[str.length()-2]-'0';
        out<<v[s]<<'\n';
    }
    return 0;
}