xy = [int(x) for x in input().split()]
x = [xy[0], xy[2], xy[4], xy[0]]
y = [xy[1], xy[3], xy[5], xy[1]]

x4 = 1000
y4 = 1000
for i in range(2):
    x1 = 0
    y1 = 0
    x2 = 0
    y2 = 0
    x3 = x[i + 2]
    y3 = y[i + 2]
    if x[i] <= x[i + 1]:
        x1 = x[i]
        y1 = y[i]
        x2 = x[i + 1]
        y2 = y[i + 1]
    else:
        x1 = x[i + 1]
        y1 = y[i + 1]
        x2 = x[i]
        y2 = y[i]
    dx = x2 - x1
    dy = y2 - y1
    px = [x1 + dy, x2 + dy, x1 - dy, x2 - dy]
    py = [y1 - dx, y2 - dx, y1 + dx, y2 + dx]
    for j in range(len(px)):
        if x3 == px[j] and y3 == py[j]:
            if j % 2 == 0:
                x4 = px[j + 1]
                y4 = py[j + 1]
            else:
                x4 = px[j - 1]
                y4 = py[j - 1]
            break

if x4 != 1000 and y4 != 1000:
    print(x4, y4)
else:
    print(-1)