#include<stdio.h>   
#include<string.h>   
int rez[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};      
char v[101];   
int a,b,l,c;   
int main()   
    {   
    FILE*f,*g;   
    f=fopen("cifra.in","r");   
    g=fopen("cifra.out","w");   
    int T;   
    fscanf(f,"%d",&T);   
    for(int i=1;i<=T;i++)   
        {   
        fscanf(f,"%s",v);   
        l=strlen(v);   
                a=v[l-1]-48;b=v[l-2]-48;   
        if(l>1)   
            c=b*10+a;   
        else c=a;   
        fprintf(g,"%d\n",rez[c]);   
        }   
    fcloseall();   
    return 0;}