C11112331312111112111133133313331333132311211331311331323132323223312111   >>    C1111233131211111211113313331333133313231121133131133132313232322331211   <<    C11112331312111112111133133313331333132311211331311331323132323223312113   >>      C11112331312111112111133133313331333132311211331311331323132323223312112   >>