#include<fstream>
#include<sstream>
#include<cstring>
#include<stdio.h>
using namespace std;
ifstream f("cifra.in");
ofstream g("cifra.out");
int n;

int main()
{
f>>n;
int v[n];
string s;
int check[100]={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,};
for(int i=0;i<n;i++){
	f>>s;
	int l = s.length();
	if(l>2)
	{
	if(!strcmp(s.substr(l-2,2).c_str(),"00")) 
		v[i]=100;
	else
		stringstream(s.substr(l-2,2))>> v[i];
	}
	else
	stringstream(s)>>v[i]; 
	}

int index;
for(int i=0;i<n;i++)
{
index = v[i];
if(index==100)
g<<"0"<<"\n";
else
g<<check[index-1]<<"\n";
}


return 0;
}