\begin{tabular}{|l|c|c|c|c|} \hline \multicolumn{1}{|c|}{ Item } & NN-1 & NN-2 & NN-3 & NN-4 \\ \hline Number of inputs & 2 & 2 & 4 & 2 \\ \hline Total number of & 4+14+ & 24+42+ & 44+42+21=26 & 28+84+ \\ "weight" parameters & 41=8 & 21=18 & & 41=52 \\ to learn & & & & \\ \hline[0.54=2 Points] & & & & \\ \hline \end{tabular}