=   −1  −1  −1  −1  −1  1  −1  1  −1  −1  −1  −1  −1  1  −1  −1  1  1  1  −1  −1  1  −1  −1  1  1  1  −1  −1  1  −1  1  −1  −1  −1  −1  −1  1  −1   −1  |
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         1  1  1  1  1  −1  1  −1  1  1  1  −1  −1  1  −1  1  −1  −1  −1  1  1  −1   |
=   −1  1  1  −1  −1  −1  1  1  −1  1  1  −1  −1  −1  1  −1  1  −1  −1  −1  −1  −1  1  −1  1  −1  −1  −1  −1  −1  1  1  −1  1  1  −1  −1  −1  1  −1  1   |
            −1  −1  1  1  1  −1  −1  1  −1  −1  −1  −1  −1  1  1  −1  1  1  1  1  1   |
=   −1  −1  −1  −1  −1  1  −1  −1  1  1  1  1  1  −1  1  −1  1  1  1  −1  −1  1  −1  1  −1  −1  −1  1  1  −1  1  1  −1  −1  −1  −1  −1  1  −1   |
         1  −1  −1  −1  −1  −1  1  −1  −1  1  1  1  −1  −1  1  −1  −1  1  1  1  −1  −1  1   |
=   −1  1  1  −1  −1  −1  1  −1  1  −1  −1  1  1  1  −1  −1  1  −1  −1  −1  −1  −1  1  1  −1  1  1  1  1  1  −1  1  −1  1  1  −1  −1  −1  1  1  −1  1  |
         1  −1  −1  −1  1  −1  1  −1  −1  −1  −1  −1  1  −1  1  −1  −1  −1  −1  −1   |