#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
int v[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()
{
    freopen("cifra.in","r",stdin);
    freopen("cifra.out","w",stdout);
    int t,i,lg,aux;
    char s[200];
    scanf("%d\n",&t);
    for(i=1; i<=t; ++i)
    {
        gets(s);
        if(strlen(s)>=2) aux=10*(s[strlen(s)-2]-'0')+(s[strlen(s)-1]-'0');
        else aux=s[0]-'0';
        printf("%d\n",v[aux]);
    }
    return 0;
}