C11112331312111112111133133313331333132323213331333131121333132322321312131   >>    C1111233131211111211113313331333133313232321333133313112133313232232131213   <<    C11112331312111112111133133313331333132323213331333131121333132322321312133   >>      C11112331312111112111133133313331333132323213331333131121333132322321312132   >>