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

const long long INF = 1LL << 60;
#define MOD 1000000007;

typedef long long ll;

#define writeln(n) cout<<n<<endl;

typedef pair<float, float> P;

typedef pair<string, int> Psi;


int main() {

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

}