C11112331312111112111133133313331333133313123313331311331333132321333113321   >>    C1111233131211111211113313331333133313331312331333131133133313232133311332   <<    C11112331312111112111133133313331333133313123313331311331333132321333113323   >>      C11112331312111112111133133313331333133313123313331311331333132321333113322   >>