#include <iostream>
#include <fstream>
#include <string.h>
using namespace std;
#define IN "cifra.in"
#define OUT "cifra.out"

int i, j, p, n, l, nr;
char t[101];
int st[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};

int main(){
    ifstream fi(IN);
	ofstream fo(OUT);
    fi >> n;
	for(i = 0; i < n; i ++){
		fi >> t;
		l = strlen(t);
		nr = 0;
		if(l > 1){
			nr = (t[l - 2] - '0') * 10 + (t[l - 1] - '0');
		} else {
			nr = t[l - 1] - '0';	
		}
		fo << st[nr] << endl;
	}
    fi.close();
	fo.close();

	return 0;
}