28. There are 5 passwords as shown in the figure below, all consisting of 3 letters, where 4 of the passwords correspond to 286, 540, 793, 948. Please decipher the three-digit numbers corresponding to these 5 passwords.
$$
\begin{array}{lllll}
R W Q & S X W & P S T & X N Y & N X Y \\
& & & & \\
\hline & & & & \\
\hline
\end{array}
$$
Answer: $286,948,793,450,540$