C11112331312111112111133133313331333133313123313331323221211331121   >>    C1111233131211111211113313331333133313331312331333132322121133112   <<    C11112331312111112111133133313331333133313123313331323221211331123   >>      C11112331312111112111133133313331333133313123313331323221211331122   >>