C1111121111331311211331333133313331333133313231333133313331312111133223331221   >>    C111112111133131121133133313331333133313331323133313331333131211113322333122   <<    C1111121111331311211331333133313331333133313231333133313331312111133223331223   >>      C1111121111331311211331333133313331333133313231333133313331312111133223331222   >>