C11112331312111112111133133313231333132313232233133313222332311   >>    C1111233131211111211113313331323133313231323223313331322233231   <<    C11112331312111112111133133313231333132313232233133313222332313   >>      C11112331312111112111133133313231333132313232233133313222332312   >>