C11112331312111112111133133313331333132112312111111331322323221   >>    C1111233131211111211113313331333133313211231211111133132232322   <<    C11112331312111112111133133313331333132112312111111331322323223   >>      C11112331312111112111133133313331333132112312111111331322323222   >>