#include <stdio.h>
#include <string.h>
int c[102] = {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 n,t,i;

char s[102];

int main(){
  FILE *f = fopen("cifra.in","r");
  FILE *g = fopen("cifra.out","w");
  fscanf(f,"%d",&t);
  for (i=1;i<=t;i++) {
    fscanf(f,"%s",&s);
    if (strlen(s)>=2)
	n = (s[strlen(s)-2]-48)*10+s[strlen(s)-1]-48;
    else
	n = s[strlen(s)-1]-48;

    fprintf(g,"%d\n",c[n]);
  }
  fclose(f);
  fclose(g);

  return 0;
}