#include <iostream>
using namespace std;
int main() {
    long int x, y;
    cin >> x >> y;
    if (x <= 0 || y <= 0)
        cout << x << ' ' << y;
    else if ((x + y) % 2 != 0)
        cout << y << ' ' << x;
    else
        cout << x << ' ' << y;
}

Do not post your AC code!!