M40:=
[
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    [ <1, 0>, <2, -4>, <4, 8>, <5, 8>, <8, 0>, <10, -4>, <20, 0>, <40, 0> ],
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    [ <1, 8>, <2, -8>, <4, 8>, <5, 0>, <8, 0>, <10, 0>, <20, 0>, <40, 0> ],
    [ <1, 0>, <2, -2>, <4, 4>, <5, 8>, <8, 0>, <10, -6>, <20, 4>, <40, 0> ],
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    [ <1, 2>, <2, -1>, <4, 1>, <5, -2>, <8, 0>, <10, 1>, <20, 7>, <40, 0> ],
    [ <1, 0>, <2, 8>, <4, -4>, <5, 0>, <8, 0>, <10, 8>, <20, -4>, <40, 0> ],
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    [ <1, 0>, <2, 4>, <4, -2>, <5, 0>, <8, 0>, <10, 0>, <20, 6>, <40, 0> ],
    [ <1, -2>, <2, -3>, <4, 13>, <5, 2>, <8, 0>, <10, -1>, <20, -1>, <40, 0> ],
    [ <1, 0>, <2, -4>, <4, 8>, <5, 0>, <8, 0>, <10, 8>, <20, -4>, <40, 0> ],
    [ <1, -2>, <2, 5>, <4, 3>, <5, 2>, <8, 0>, <10, 3>, <20, -3>, <40, 0> ],
    [ <1, 2>, <2, -3>, <4, 5>, <5, -2>, <8, 0>, <10, 3>, <20, 3>, <40, 0> ],
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    [ <1, 0>, <2, 0>, <4, 0>, <5, 0>, <8, 0>, <10, 16>, <20, -8>, <40, 0> ],
    [ <1, 0>, <2, 0>, <4, 6>, <5, 0>, <8, 0>, <10, 4>, <20, -2>, <40, 0> ],
    [ <1, 4>, <2, -2>, <4, 2>, <5, -4>, <8, 0>, <10, 10>, <20, -2>, <40, 0> ]
]
;
