C1111121111331311211331333133313231333132212111113331333133313331123111   >>    C111112111133131121133133313331323133313221211111333133313331333112311   <<    C1111121111331311211331333133313231333132212111113331333133313331123113   >>      C1111121111331311211331333133313231333132212111113331333133313331123112   >>