int     frip    = 0;
    Number *outdex  = NULL;
    Number *index   = NULL;

    // display this from start to end
    tmp = start;
    fprintf(stdout, "BEFORE: ");
    while (tmp != NULL)
    {
        fprintf(stdout, "%2d ", tmp -> value);
        tmp = tmp -> next;
    }
    fprintf(stdout, "\n");

    outdex                              = start; // start outdex at start of list
    while (outdex                      != NULL) // keep looping until we're done with list
    {
        frip                            = 0; // our sort flag
        index                           = start; // start index at start of list
        while (index  -> next          != NULL) // loop through the list
        {
            if (index -> value         <  index -> next -> value)
            {
                index -> value          = index -> value ^ index -> next -> value;
                index -> next -> value  = index -> value ^ index -> next -> value;
                index -> value          = index -> value ^ index -> next -> value;
                frip                    = 1;
            }
            index                       = index -> next;
        }

        if (frip                       == 0)
            break;
        
        outdex                          = outdex -> next;
    }

    // display this from start to end
    tmp = start;
    fprintf(stdout, "AFTER:  ");
    while (tmp != NULL)
    {
        fprintf(stdout, "%2d ", tmp -> value);
        tmp = tmp -> next;
    }
    fprintf(stdout, "\n");

    return(0);