C111113331333132322331333133313331331121111121133133313121111121111332123312111   >>    C11111333133313232233133313331333133112111112113313331312111112111133212331211   <<    C111113331333132322331333133313331331121111121133133313121111121111332123312113   >>      C111113331333132322331333133313331331121111121133133313121111121111332123312112   >>