C212212121212113313132333131311331323331323132233132322331311311   >>    C21221212121211331313233313131133132333132313223313232233131131   <<    C212212121212113313132333131311331323331323132233132322331311313   >>      C212212121212113313132333131311331323331323132233132322331311312   >>