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

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int a,b;
    cin >> a >> b;
    int temp = a;
    a = b;
    b = temp;
    cout << a << "\n" << b;
}