at 104A

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define test int t; cin>>t; for(int cs=1;cs<=t;cs++)
int main()
{
   ios_base::sync_with_stdio(0);
   cin.tie(0);cout.tie(0);

   ll a,c,d,e,f,i,j,k,l;

   cin>>a>>c;
   e=(a+c)/2;
   d=(a-e);
   cout<<e<<" "<<d<<endl;


   return 0;
}