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┃　│　│　│　│　│　│　│　┃
┠─┼─┼─┼─┼─┼─┼─┼─┨
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┠─┼─┼─┼─┼─┼─┼─┼─┨
┃　│　│　│○│●│　│　│　┃
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┃　│　│　│●│○│　│　│　┃
┠─┼─┼─┼─┼─┼─┼─┼─┨
┃　│　│　│　│　│　│　│　┃
┠─┼─┼─┼─┼─┼─┼─┼─┨
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┠─┼─┼─┼─┼─┼─┼─┼─┨
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やろうぜ