int main(void) {
    int a;
    int b;
    int c;

    a = 11;
    b = 22;
    c = 33;

    /* max value */
    if (a > b) {
        if (a > c)
            output(a);
        else
            output(c);
    } else {
        if (c < b)
            output(b);
        else
            output(c);
    }
    return 0;
}