#include <iostream>
using namespace std;

// write your code here......
void swap(int &m,int &n){
    int t=m;
    m=n;
    n=t;
}

int main() {

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

    // write your code here......
    swap(m,n);
    cout << m << " " << n << endl;

    return 0;
}