C3123121111113313121111331333133313121111133313223313133313331323233111   >>    C312312111111331312111133133313331312111113331322331313331333132323311   <<    C3123121111113313121111331333133313121111133313223313133313331323233113   >>      C3123121111113313121111331333133313121111133313223313133313331323233112   >>