#include <fstream>
#include <string>
using namespace std;
#define PERIOD 100
int main() {
    int p[] = {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};
    ifstream I("cifra.in");
    ofstream O("cifra.out");
    int T;
    I >> T;
    for(int j=0;j<T;j++) {
        string N;
        I >> N;
        int sz = N.size();
        int n;
        if(sz > 1) {
            n = ((N.c_str())[sz-1] - 48) + ((N.c_str())[sz-2] - 48)*10;
        } else {
            n = ((N.c_str())[sz-1] - 48);
        };
        O << p[ n % 100 ] << endl;
    };
    return 0;
};