#include <cstdio>
#include <cstring>
#include <algorithm>
#define input "cifra.in"
#define output "cifra.out"
#define DIM 100001

using namespace std ;

int t ;
char c1 = '0', c2 = '0', c3 = '0';
int s[DIM]={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};

char nr[DIM];

void solve() {
  memset(nr, 0, sizeof nr);

  scanf("%s", nr);

  int last2 = 0;

  for (int i = 0; nr[i] != '\n' && nr[i] != 0; ++i) {
    last2 = (last2*10 + nr[i] - '0') % 100;
  }
  
  printf("%d\n", s[last2]);
}


int main()
{
    freopen (input,"r",stdin);
    freopen (output,"w" , stdout ) ;

    int t;
    
    scanf("%d\n", &t);
    
    while (t--)
      solve() ;

    return 0;
}