#include "bits/stdc++.h" #define rep(a,b) for(int a = 0;a < b;a++) #define REP(i, x, n) for(int i = x; i < n; i++) #define P(a) cout << a << endl #define MP(a,b) make_pair(a,b) #define PB(a) push_back(a) using namespace std; typedef long long ll; typedef unsigned long long ull; typedef vector vi; int dx[] = { 1, -1 , 0 , 0 }; int dy[] = { 0, 0, 1, -1 }; ll MOD = 1000000007; void solve() { string a,b; cin >> a >> b; cout << b << " " << a << endl; } int main() { solve(); return 0; }