#include<stdio.h>
int n,c[100]={0,1,5,2,8,3,9,1,7,6,7,8,2,9,5,0,6,8,4,3,4,5,9,6,2,7,3,5,1,0,1,2,6,3,9,4,0,2,8,7,8,9,3,0,6,1,7,9,5,4,5,6,0,7,3,8,4,6,2,1,2,3,7,4,0,5,1,3,9,8,9,0,4,1,7,2,8,0,6,5,6,7,1,8,4,9,5,7,3,2,3,4,8,5,1,6,2,4,0,9};
void solve(){
    int i,nr;
    scanf("%d",&n);
    for(i=1; i<=n; ++i){
        scanf("%d",&nr);
        printf("%d\n",c[nr%100]);}}
int main(){
    freopen("cifra.in","r",stdin);
    freopen("cifra.out","w",stdout);
    solve();
    return 0;}