#include<fstream.h>

int k[100]={1,5,2,8,3,9,2,8,7,7,8,2,9,5,0,6,9,5,4,4,5,9,6,2,7,3,6,2,1,1,2,6,3,9,4,0,3,9,8,8,9,3,0,6,1,7,0,6,5,5,6,0,7,3,8,4,7,3,2,2,3,7,4,0,5,1,4,0,9,9,0,4,1,7,2,8,1,7,6,6,7,1,8,4,9,5,8,4,3,3,4,8,5,1,6,2,5,1,0,0};
long rasp[100];
char c;
int t,j,ok;

int main()
{	ifstream fin("cifra.in");
	ofstream fout("cifra.out");
	fin>>t;ok=0;j=0;
	while(t>0&&!fin.eof())
	{     	fin.get(c);
		if(c!='\n'&&!fin.eof()){rasp[j++]=c-48;ok=1;}
		else	if(ok)
			{	fout<<k[(rasp[j-2]*10+rasp[j-1])-1]<<'\n';
				j=0;t--;
			}
	}
	return 0;
}