#include<fstream>
#include<cstring>
using namespace std;
int main(){
    ifstream fin("cifra.in");
    ofstream fout("cifra.out");
    int rez[] = {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,},n,nr;
    char x[101];
    fin >> nr;
    fin.get();
    while(nr){
        fin.getline(x,101);

        if(strlen(x)>1) n = (x[strlen(x)-2]-'0')*10 + (x[strlen(x)-1]-'0');
        else n = x[0]-'0';

        fout << rez[n]<<"\n";
        nr--;
    }
    fout.close();
    fin.close();
    return 0;
}