C11112331312111112111133133313331333133112111113331333133313332221   >>    C1111233131211111211113313331333133313311211111333133313331333222   <<    C11112331312111112111133133313331333133112111113331333133313332223   >>      C11112331312111112111133133313331333133112111113331333133313332222   >>