x, y = [0] * 4, [0] * 4
x[0], y[0], x[1], y[1], x[2], y[2] = map(int, input().split())


def right_square(i, j, k, dx, dy):
    if x[k] != x[j] - dy or y[k] != y[j] + dx:
        return False
    if x[3] != x[k] - dx or y[3] != y[k] - dy:
        return False
    if x[i] != x[3] + dy or y[i] != y[3] - dx:
        return False

    return True


def main():
    for i in range(3):
        for j in range(3):
            for k in range(3):
                if i == j or j == k or k == i:
                    continue

                dx, dy = x[j] - x[i], y[j] - y[i]
                x[3], y[3] = x[i] - dy, y[i] + dx

                if right_square(i, j, k, dx, dy):
                    print(x[3], y[3])
                    exit()

    print(-1)


if __name__ == '__main__':
    main()