#include <cstdio>
#include <cstring>
using namespace std;
char n[105];
const int v[]={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 T, i, p;
int main()
{
freopen("cifra.in","r",stdin);
freopen("cifra.out","w",stdout);
scanf("%d\n",&T);
while (T--)
{
p = 0;
gets(n);
i = strlen(n);
if (i > 1)
{
p += n[i - 2] - '0';
p = (p << 1) + (p << 3);
p += n[i - 1] - '0';
}
else
p = n[i - 1] - '0';
printf("%d\n",v[--p]);
}
return 0;
}