#include using namespace std;
// write your code here...... void exchange(intm,intn) { *m=(*m)^(*n); *n=(*m)^(*n); *m=(*m)^(*n); }
int main() {
int m, n;
cin >> m;
cin >> n;
// write your code here......
exchange(&m,&n);
cout << m << " " << n << endl;
return 0;
}