X = list(map(int, input().split()))
XY = []
for i in range(3):
    XY.append((X[2 * i], X[2 * i + 1]))
for i in range(3):
    x0 = XY[i][0]
    y0 = XY[i][1]
    x1 = XY[(i + 1) % 3][0] - x0
    y1 = XY[(i + 1) % 3][1] - y0
    x2 = XY[(i + 2) % 3][0] - x0
    y2 = XY[(i + 2) % 3][1] - y0
    if x1 ** 2 + y1 ** 2 != x2 ** 2 + y2 ** 2:
        continue
    if abs(x1 * y2 - x2 * y1) == x1 ** 2 + y1 ** 2:
        print(x0 + x1 + x2, y0 + y1 + y2)
        exit()
print(-1)