C1111121111331311211331333133313331333133313121111121111331333132321121221   >>    C111112111133131121133133313331333133313331312111112111133133313232112122   <<    C1111121111331311211331333133313331333133313121111121111331333132321121223   >>      C1111121111331311211331333133313331333133313121111121111331333132321121222   >>