C11112331312111112111133133313331311331323131323133313232322331   >>    C1111233131211111211113313331333131133132313132313331323232233   <<    C11112331312111112111133133313331311331323131323133313232322333   >>      C11112331312111112111133133313331311331323131323133313232322332   >>