#include<iostream>
using namespace std;
void swap(int &a,int &b){
    if(a==b) return;
    int t=a;
    a=b;
    b=t;
}
int main(){
    int x,y;
    cin>>x>>y;
    swap(x,y);
    cout<<x<<" "<<y;
    return 0;
}