P4 Swap

#include <bits/stdc++.h>
#define endl "\n"
#define endll "\n\n"
#define pb push_back
#define IO ios_base::sync_with_stdio(0)
#define ll long long
#define inf 0x3f3f3f3f
#define MAXN inf
#define MINN -inf

using namespace std;

class Solution{
    public:

    private:

};

signed main(){
    IO;
    #ifdef DEBUG
        cin.tie(0);cout.sync_with_stdio(0);
        string rootPath = "./";
         freopen((rootPath+"t.in").c_str(), "r", stdin);
         freopen((rootPath+"t.out").c_str(), "w", stdout);
    #endif

    // TODO

    int a, b; cin >> a >> b;
    cout << b << ' ' << a << endl;

    // cin >> a >> b; swap(a, b);
    // cout << a << ' ' << b << endl;

    return EXIT_SUCCESS;
}