import math

def main():
    N = int(input())

    if N < 6:
        print(-1)
    elif not N & 1:
        print(3, N - 3)
    else:
        for i in (3, 5, 6):
            j = N - i
            n = 0
            while 1:
                k = 1 << n
                if k == j:
                    break
                elif k > j:
                    print(i, j)
                    return
                n += 1
        print(-1)

main()