#include<fstream>
#define max 1000
using namespace std;

int constanta[101]={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 main()
{
 long t,i,l,u2c;
 char nr[max];
	
 ifstream fin("cifra.in");
 ofstream fout("cifra.out");
 fin>>t;
 for (i=1; i<=t; i++)
	 {
	  fin>>nr;
	  
	  l=strlen(nr);
	  
	  if (l>1)
		  u2c=(nr[l-2]-'0')*10+(nr[l-1]-'0'); else
		  u2c=nr[0]-'0';
	  
	  fout<<constanta[u2c]<<'\n';
	 }
	
 fin.close();
 fout.close();
 
 return 0;
}