C11112331312111112111133133313231333132313232233133313113313123232333131   >>    C1111233131211111211113313331323133313231323223313331311331312323233313   <<    C11112331312111112111133133313231333132313232233133313113313123232333133   >>      C11112331312111112111133133313231333132313232233133313113313123232333132   >>