C2122121212121133131323331313113313233313231322331311331323132233132322221   >>    C212212121212113313132333131311331323331323132233131133132313223313232222   <<    C2122121212121133131323331313113313233313231322331311331323132233132322223   >>      C2122121212121133131323331313113313233313231322331311331323132233132322222   >>