Loop through cells and place specific values onto them

So I want to create a table like this

I want those specific numbers on the cells.

I had an idea of how to do it where I check the value of the cell above the one I’m filling in.

Something like this

if cell_above.value = 2 then
current_cell.value = -2

if cell_above.value = -2 then
current_cell.value = 4

and on and on like that.

This just seems like a lot of work and there is probably an easier way to do this. Can somebody help me think of another way to solve this? Thank you

>Solution :

if I understood you correctly, you can put those constant values in array and put them into range. Something similar as in this answer: stackoverflow.com/a/33161421/14849657