import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

n = int(readline())
ab = [2 ** i for i in range(60)]
for i in range(1, n):
    if i not in ab and (n - i) not in ab:
        print(i, n - i)
        break
else:
    print(-1)