#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;

}