C2111111331313232233132333132311331323331323112211232313331323223313232212231   >>    C211111133131323223313233313231133132333132311221123231333132322331323221223   <<    C2111111331313232233132333132311331323331323112211232313331323223313232212233   >>      C2111111331313232233132333132311331323331323112211232313331323223313232212232   >>