input | output | input | output | input | output | input | output |
1 1 1 1 | 0 | −1 1 −1 −1 | 1 | −1 −1 −1 1 | 1 | 1 −1 −1 1 | 0 |
−1 1 1 1 | 1 | 1 1 −1 −1 | 0 | 1 −1 1 −1 | 0 | −1 −1 1 −1 | 1 |
1 1 1 −1 | 0 | 1 −1 1 1 | 1 | −1 −1 −1 −1 | 0 | 1 1 −1 1 | 1 |
−1 1 1−1 | 0 | −1 −1 1 1 | 0 | 1 −1 −1 −1 | 1 | −1 1 −1 1 | 0 |