C111112111133131121133133313331311331333132223133313331311213223311   >>    C11111211113313112113313331333131133133313222313331333131121322331   <<    C111112111133131121133133313331311331333132223133313331311213223313   >>      C111112111133131121133133313331311331333132223133313331311213223312   >>