C11112331312111112111133132313331333133313233313331333132322332112211311   >>    C1111233131211111211113313231333133313331323331333133313232233211221131   <<    C11112331312111112111133132313331333133313233313331333132322332112211313   >>      C11112331312111112111133132313331333133313233313331333132322332112211312   >>