#include <iostream>
using namespace std;

void my_swap(int * a, int * b) {
    int tmp = *a;
    *a = *b;
    *b = tmp;
}
int main() {
    int *a, *b;
    a = new int;
    b = new int;
    cin >> (*a) >> (*b);

    my_swap(a, b);
    cout << *a << " " << *b << endl;
    return 0;
}
/*
 5
 1 2 3 4 5
 5
 **/