integer
ordered(data s)
{
    integer a, c, p;

    a = 1;

    p = -1;
    for (, c in s) {
        if (c < p) {
            a = 0;
            break;
        } else {
            p = c;
        }
    }

    a;
}

integer
main(void)
{
    file f;
    text s;
    index x;

    f.affix("unixdict.txt");

    while (f.line(s) != -1) {
        if (ordered(s)) {
            x.v_list(~s).append(s);
        }
    }

    l_ucall(x.back, o_, 0, "\n");

    return 0;
}