C2111111331313232233132333132311331323331323112211232313331323132212321   >>    C211111133131323223313233313231133132333132311221123231333132313221232   <<    C2111111331313232233132333132311331323331323112211232313331323132212323   >>      C2111111331313232233132333132311331323331323112211232313331323132212322   >>