#include<cstdio>
using namespace std;
int a,i,n,t,v[]={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};
int main(){
	freopen("cifra.in","r",stdin);
	freopen("cifra.out","w",stdout);
	scanf("%d",&t);
	for(i=1;i<=t;i++){
		scanf("%d",&n);
	  printf("%d\n",v[n]);}
	return 0;}