n = int(input())

ng = set()
for i in range(61):
  ng.add(1 << i)

for i in range(1, 61):
  a = 1 + (1 << i)
  b = n - a
  if b <= 0:
    break
  elif not b in ng:
    print(f"{a} {b}")
    exit()
  else:
    a += 1
    b -= 1
    if b > 0 and not a in ng and not b in ng:
      print(f"{a} {b}")
      exit()

print("-1")