#include <stdio.h>

char* scramble(char*, const char* ,const char*, char);

int main(int argc, char** argv)
{
    char message[9];

    if (argc != 3) {
        printf("usage: %s challenge password\n", argv[0]);
        return 1;
    }

    printf("challenge: >%s<\n", argv[1]);
    printf("password:  >%s<\n", argv[2]);

    scramble(message, argv[1], argv[2], 0);
    printf("message:   >%s<\n", message);

    return 0;
}