from itertools import *

def vec_rot(x, y):
    return y, -x

Z = list(map(int, input().split()))
X = Z[0::2]
Y = Z[1::2]
for tup in permutations(range(3)):
    dx = X[tup[1]] - X[tup[0]]
    dy = Y[tup[1]] - Y[tup[0]]
    dx, dy = vec_rot(dx, dy)
    if X[tup[2]] != X[tup[1]] + dx or Y[tup[2]] != Y[tup[1]] + dy:
        continue
    dx, dy = vec_rot(dx, dy)
    ansX = X[tup[2]] + dx
    ansY = Y[tup[2]] + dy
    dx, dy = vec_rot(dx, dy)
    if X[tup[0]] != ansX + dx or Y[tup[0]] != ansY + dy:
        continue
    print(ansX, ansY)
    exit()
print(-1)