C2111111331313232233132333132311331323331333132313232113313113221   >>    C211111133131323223313233313231133132333133313231323211331311322   <<    C2111111331313232233132333132311331323331333132313232113313113223   >>      C2111111331313232233132333132311331323331333132313232113313113222   >>