import math
N = int(input())
two_pow = [1]
bit = 1
while bit < N:
	bit <<= 1
	two_pow.append(bit)

if N % 2 == 1:
	if N < 9:
		print(-1)
	else:
		num = 3
		while (num in two_pow) or ((N-num) in two_pow):
			num += 1

		else:
			print(str(num) + " " + str(N-num))
	
			
else:
	if N < 6:
		print(-1)
	else:
		print(str(min(3,N-3)) + " " + str(max(3,N-3)))