N = int(input())

if N%2 == 0:
    if N >= 6:
        ans = "3 " + str(N-3)
    else:
        ans = -1
else:
    if N >= 9:
        if bin(N-3).count("1") == 1:
            ans = "5 " + str(N-5)
        else:
            ans = "3 " + str(N-3)
    else:
        ans = -1
print(ans)