#include <iostream>
#include <utility>
using namespace std;

// write your code here......


int temp;
int swap (int *m, int *n)
{
    temp = *n;
    *n = *m;
    *m = temp;

    return *m, *n;
}

int main() {

    int m, n;
    cin >> m;
    cin >> n;

    // write your code here......

    swap(&m, &n);
    
    cout << m << " " << n << endl;
    






    return 0;
}