C11112331312111112111133133313231333132322121111133313223313331311211311   >>    C1111233131211111211113313331323133313232212111113331322331333131121131   <<    C11112331312111112111133133313231333132322121111133313223313331311211313   >>      C11112331312111112111133133313231333132322121111133313223313331311211312   >>