#include <bits/stdc++.h>
using namespace std;

int main( int argc, char *argv[] )
{
char a[ 100 ];
char b[ 100 ];

	ios::sync_with_stdio( false );
	cin.tie( 0 );

	cin >> a;
	cin >> b;
	cout << b << " " << a << endl;

	return 0;
}