#include<stdio.h>
#include<string.h>
long t, sum[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 s [ 1007 ] ;
int main()
{
    freopen ( "cifra.in" , "r" , stdin ) ;
    freopen ( "cifra.out" , "w" , stdout ) ;
    scanf ( "%ld\n" , & t ) ;
    for( ; t > 0 ; -- t )
    {
        scanf ( "%s\n" , s ) ;
        long nr = s [ strlen ( s ) - 1 ] - '0' ;
        if( strlen ( s ) > 1 )
        {
            nr += 10 * ( s [ strlen ( s ) - 2 ] - '0' )  ;
        }
        printf ( "%ld\n" , sum [ nr ] ) ;
    }
    return 0;
}