C1111121111331311211331333133313331333133313232212111133132313331123311   >>    C111112111133131121133133313331333133313331323221211113313231333112331   <<    C1111121111331311211331333133313331333133313232212111133132313331123313   >>      C1111121111331311211331333133313331333133313232212111133132313331123312   >>