MOD = 10 ** 9 + 7
INF = 10 ** 15

def main():  
    N = int(input())
    if N <= 5:
        print(-1)
        return
    for i in range(3,6,2):
        j = N - i
        if j//(j & -j) != 1:
            print(i,j)
            return
    print(-1)
if __name__ == '__main__':
    main()