C11112331312111112111133133313331333132112312111133231333132233111   >>    C1111233131211111211113313331333133313211231211113323133313223311   <<    C11112331312111112111133133313331333132112312111133231333132233113   >>      C11112331312111112111133133313331333132112312111133231333132233112   >>