/* run with: for n in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do ./a.out $n; done */

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
    char foo[] = "abcdefghijklmnopqrstuvwxyz";
    if (argc != 2)
    {
        puts("bad usage");
        return 1;
    }

    printf("%llx\n", *(long long *)(foo + atoi(argv[1])));
    return 0;
}