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Overall Editorial

• Official Editorial by admin

A - 末尾の文字 (Last Letter)

There is no editorial yet.

B - 絶対階差数列 (Sequence of Absolute Differences)

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C - 鐘 (Bell)

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D - コイン集め 2 (Coin Collecting 2)

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E - 運河 (Canal)

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F - タイピング大会 (Typing Contest)

There is no editorial yet.