#include <iostream>
using namespace std;

// write your code here......
void swap1(int*p1,int*p2){
    int temp = *p1;
    *p1 = *p2;
    *p2 = temp;
}

int main() {

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

    // write your code here......
    swap1(&m,&n);

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

    return 0;
}