C111112111133131121133133313331333132333131131211113313113313221323221311222131   >>    C11111211113313112113313331333133313233313113121111331311331322132322131122213   <<    C111112111133131121133133313331333132333131131211113313113313221323221311222133   >>      C111112111133131121133133313331333132333131131211113313113313221323221311222132   >>