a,b = map(float, input().split())
r1 = a + b
r2 = a - b
if (r1 > r2):
    print(str(r2) + " " + str(r1))
else:
    if (r1 < r2):
        print(str(r1) + " " + str(r2))
    else:
        print(str(r1))