#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,c,d;
	cin>>a>>b;
	c=a;
	a=b;
	b=d;
	b=c;
	cout<<a<<" "<<b; 
	return 0;
}

/**************************************************************
	Problem: 1675
	User: lzc
	Language: C++
	Result: Wrong Answer
****************************************************************/