N = int(input())
x = 1
S = {x}
while x << 1 < N:
    x <<= 1
    S.add(x)
if N < 6:
    print(-1)
for i in range(3,N):
    if i in S:
        continue
    if N - i in S:
        continue
    print(i,N-i)
    exit()