#include <iostream>
#include <fstream>
#include <cstdlib>
#include <cstring>

using namespace std;

int main()
{
    FILE *f,*g;
    f=fopen("cifra.in","r");
    g=fopen("cifra.out","w");
    int a[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};

    int t, n, i=0;
    char b[100000];
    fscanf(f,"%d",&t);

    while(i<t)
    {
        fscanf(f,"%s",&b);
        if(strlen(b)>1)
            strcpy(b, b+strlen(b)-2);
        n=atoi(b);
        fprintf(g,"%d\n",a[n]);
        i++;
    }

    fclose(f);
    fclose(g);
    return 0;
}