import itertools
XY = list(map(int,input().split()))
X = XY[0::2]
Y = XY[1::2]
for i, j, k in itertools.permutations([0, 1, 2]):
    if Y[k] == Y[j] + X[j] - X[i] and X[k] == X[j] - Y[j] + Y[i]:
        print(X[k] - X[j] + X[i], Y[k] - Y[j] + Y[i])
        break
else:
    print(-1)