C11112331312111112111133133313331333133313331333133313311211111133131323221   >>    C1111233131211111211113313331333133313331333133313331331121111113313132322   <<    C11112331312111112111133133313331333133313331333133313311211111133131323223   >>      C11112331312111112111133133313331333133313331333133313311211111133131323222   >>