//test return 0
//what happens if god runs out of stack space?

int reconstruct(int a) {
    a++;
    return a;
}

int destroy(int a) {
    a--;
    return a;
}

int play_god(int a, int t) {
    if(t == 0)
        return a;
    a = reconstruct(a);
    a = destroy(a);
    return play_god(a, t-1);
}

int main() {
    return play_god(0, 2147483647);
}