Python :

# coding=utf-8
def getint():
    return [int(i) for i in input().split()]
def get():
    return int(input())
def S():
    for test in range(int(input())):
        solve()
def solve():
    n=get()



a,b = getint()
x=(a+b)//2
y=(a-b)//2
print(x,y)