C11112331312111112111133133313331333132323213331333133313122121111111232113231   >>    C1111233131211111211113313331333133313232321333133313331312212111111123211323   <<    C11112331312111112111133133313331333132323213331333133313122121111111232113233   >>      C11112331312111112111133133313331333132323213331333133313122121111111232113232   >>