Design a lowpass filter using the frequency-response masking method satisfying the following specifications:

\[\begin{aligned}A_{\mathrm{p}} & =2.0 \mathrm{~dB} \\A_{\mathrm{r}} & =40 \mathrm{~dB} \\\omega_{\mathrm{p}} & =0.33 \pi \mathrm{rad} / \mathrm{sample} \\\omega_{\mathrm{r}} & =0.35 \pi \mathrm{rad} / \text { sample. }\end{aligned}\]

Compare the results obtained with and without an efficient ripple margin distribution, with respect to the total number of multiplications per output sample, with the maximum passband ripple and with the resulting minimum stopband attenuation.