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

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

#include using namespace std; int main() {int a,b,c; cin>>a>>b; c=a;a=b;b=c; cout<<a<<" "<<b<<endl; return 0; }