void abort(void);
void exit(int);

void foo(unsigned int *p) {
    if ((signed char)(*p & 0xFF) == 17 || (signed char)(*p & 0xFF) == 18)
        return;
    else
        abort();
}

int main() {
    int i = 0x30011;
    foo(&i);
    exit(0);
}
