import itertools

Z = list(map(int,input().split()))

X, Y = Z[0::2], Z[1::2]
P = list(itertools.permutations([0,1,2]))

for a,b,c in P:
	if Y[a]-Y[b] == X[c]-X[b] and X[b]-X[a] == Y[c]-Y[b]:
		print(X[a]+X[c]-X[b], Y[a]+Y[c]-Y[b])
		break

else:	print(-1)