#include <fstream.h>
#include <string.h>
#include <iostream.h>

const C[100]={

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()

{
 fstream f1("cifra.in",ios::in);
 fstream f2("cifra.out",ios::out);
 int T,i,L,x;
 char N[101];

 f1>>T;
 f1.get();
 for (i=1;i<=T;i++)
 {
  f1.get(N,100);
  f1.get();
  L=strlen(N);
  if (L==1) x=int(N[0])-48;
	else x=(int(N[L-2])-48)*10+(int(N[L-1])-48);
  f2<<C[x]<<"\n";
 };
 return 0;
}