C11112331312111112111133133313331333133313223223313231311331323133321311   >>    C1111233131211111211113313331333133313331322322331323131133132313332131   <<    C11112331312111112111133133313331333133313223223313231311331323133321313   >>      C11112331312111112111133133313331333133313223223313231311331323133321312   >>