C11112331312111112111133133313231333132313331333132322331333132322232311   >>    C1111233131211111211113313331323133313231333133313232233133313232223231   <<    C11112331312111112111133133313231333132313331333132322331333132322232313   >>      C11112331312111112111133133313231333132313331333132322331333132322232312   >>