Adding to a list

Question

Hi guys Ive been trying different ways in which one can add to a list and save up on lines of coding at the same time. Failing miserably however :(

What i am trying to do is have a feature where the user inputs 2 values via textboxes and then the system multiplies those values and adds random values to a list.

so if the values entered were 2 and 4 then the system should produce 8 random numbers and add them to a list.

Thanks guys!