#include <iostream>
#include <cctype>
using namespace std;
int main() {
long long a,b,x = 0,y = 0,c = 0;
cin >> a >> b;
if ( a < b){c = a;a = b;b = c;}
if ((a - b) % 2 == 0){
x = (a - b) / 2;
y = a - x;}
if (y < 0){y *= -1;}
if (x == 0 || y == 0){x =0;y = 0;}
cout << x << " "<< y;
return 0;
}
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