#include<stdio.h>   
#include<string.h>   
int v[]={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};   
  
void read()   
{   
    freopen("cifra.in","r",stdin);   
    freopen("cifra.out","w",stdout);   
    int t,n;   
    char s[105];   
    scanf("%d\n",&t);   
    for(;t;t--)   
    {   
        gets(s);   
        n=strlen(s);   
        n--;   
        if(n>=1)   
            n=(s[n-1]-'0')*10+s[n]-'0';   
        else n=s[n]-'0';   
        printf("%d\n",v[n]);   
    }   
}   
  
int main()   
{   
    read();   
    return 0;   
}