C11112331312111112111133133313231333132313232233133313223332322311   >>    C1111233131211111211113313331323133313231323223313331322333232231   <<    C11112331312111112111133133313231333132313232233133313223332322313   >>      C11112331312111112111133133313231333132313232233133313223332322312   >>