a = open('input.txt', 'r')
b = open('output.txt', 'w')
mx = -(10 ** 9)
mn = 10 ** 9

for x in a:
    x = int(x)
    if x % 2 == 0 and x > 0:
        if x > mx:
            mx = x
        if x < mn:
            mn = x

if mx != -(10 ** 9) and mn != 10 ** 9:
    print(mn, mx, file=b)
else:
    print(0, file=b)