C1111121111331311211331333133313331333133313221211113313121111121221   >>    C111112111133131121133133313331333133313331322121111331312111112122   <<    C1111121111331311211331333133313331333133313221211113313121111121223   >>      C1111121111331311211331333133313331333133313221211113313121111121222   >>