#include<bits/stdc++.h>
using namespace std;
const int N=1e3+10;
int Accepted(int &a,int &b){//Accepted()
    int t;
    t=a;
    a=b;
    b=t;
    return 0; 
}
int main()
{
	int a,b;
	cin >> a >> b;
	Accepted(a,b);
	cout << a << " " << b;
	return 0;
}
//老登布置的作业系列