C313212111133131211331333133313331333133313331312111113331333133313223313233111   >>    C31321211113313121133133313331333133313331333131211111333133313331322331323311   <<    C313212111133131211331333133313331333133313331312111113331333133313223313233113   >>      C313212111133131211331333133313331333133313331312111113331333133313223313233112   >>