C1111121111331311211331333133313331323131133133313231333132233121   >>    C111112111133131121133133313331333132313113313331323133313223312   <<    C1111121111331311211331333133313331323131133133313231333132233123   >>      C1111121111331311211331333133313331323131133133313231333132233122   >>