C2122121212121133131323331313113313233313231322331311331323132213232311   >>    C212212121212113313132333131311331323331323132233131133132313221323231   <<    C2122121212121133131323331313113313233313231322331311331323132213232313   >>      C2122121212121133131323331313113313233313231322331311331323132213232312   >>