\begin{array}{llll}
 & \text{20A} & \text{20B} & \text{20C} \\
\text{0} & ECU & \lbrack?\rbrack & @ \\
\text{1} & CL & \lbrack?\rbrack & @ \\
\text{2} & Cr & \lbrack?\rbrack & @ \\
\text{3} & FF & \lbrack?\rbrack & @ \\
\text{4} & L & \lbrack?\rbrack & @ \\
\text{5} & mil & \lbrack?\rbrack & @ \\
\text{6} & N & \lbrack?\rbrack & @ \\
\text{7} & Pts & \lbrack?\rbrack & @ \\
\text{8} & Rs & \lbrack?\rbrack & @ \\
\text{9} & W & @ & @ \\
\text{A} & NS & @ & @ \\
\text{B} & D & @ & @ \\
\text{C} & & @ & @ \\
\text{D} & K & @ & @ \\
\text{E} & T & @ & @ \\
\text{F} & Dr & @ & @ \\
\end{array}
