C111112111133131121133133313331333133313331312111112111133133323223313233111   >>    C11111211113313112113313331333133313331333131211111211113313332322331323311   <<    C111112111133131121133133313331333133313331312111112111133133323223313233113   >>      C111112111133131121133133313331333133313331312111112111133133323223313233112   >>