#include <iostream>
using namespace std;

// write your code here......
void myswap(int *a,int *b)
{
    int t;
    t = *a;
    *a = *b;
    *b = t;
}

int main() {

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

    // write your code here......
    myswap(&m, &n);

    cout << m << " " << n << endl;

    return 0;
}