C2221333133313331311233132313331333133313331323211113313113311211311   >>    C222133313331333131123313231333133313331333132321111331311331121131   <<    C2221333133313331311233132313331333133313331323211113313113311211313   >>      C2221333133313331311233132313331333133313331323211113313113311211312   >>