C11112331312111112111133133313331333132323133313331333132312313231323321   >>    C1111233131211111211113313331333133313232313331333133313231231323132332   <<    C11112331312111112111133133313331333132323133313331333132312313231323323   >>      C11112331312111112111133133313331333132323133313331333132312313231323322   >>