أرسل هذا في رسالة قصيرة: Linear codes over F4R and their MacWilliams identity

 _    _     _____    __   _    _    _    _    _   
| \  / ||  |  ___|| | || | || | || | || | \  / || 
|  \/  ||  | ||__   | '--' || | || | || |  \/  || 
| .  . ||  | ||__   | .--. || | \\_/ || | .  . || 
|_|\/|_||  |_____|| |_|| |_||  \____//  |_|\/|_|| 
`-`  `-`   `-----`  `-`  `-`    `---`   `-`  `-`