Cam's number of laptops and desktops are read from input represented by num$\_$laptops and num$\_$desktops, respectively. Cam receives $3$ additional laptops. Cam's number of desktops increases $4$ times.

First, write statements to update num$\_$laptops and num$\_$desktops.

Then, assign the variable total$\_$computers with the total number of laptops and desktops.