C11112331312111112111133133313231333132313232233131331123123231   >>    C1111233131211111211113313331323133313231323223313133112312323   <<    C11112331312111112111133133313231333132313232233131331123123233   >>      C11112331312111112111133133313231333132313232233131331123123232   >>