C11112331312111112111133133313331333132212111133133313331333133112111133121311   >>    C1111233131211111211113313331333133313221211113313331333133313311211113312131   <<    C11112331312111112111133133313331333132212111133133313331333133112111133121313   >>      C11112331312111112111133133313331333132212111133133313331333133112111133121312   >>