#include<bits/stdc++.h>

using namespace std;

int t;
string n;
int a[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(){
	ios::sync_with_stdio(false); cin.tie(0);
	ifstream fin("cifra.in");
	ofstream fout("cifra.out");
	fin>>t;
	for(int i=1;i<=t;i++){
	    fin>>n;
	    int x=n.length();
	    if(x==1) fout<<a[int(n[x-1]-48)]<<endl; 
			else fout<<a[int(n[x-2]-48)*10+int(n[x-1]-48)]<<endl;
	}
return 0;
}