How to make one counter for different elements?

Question

JavaScript

Hello! I have two blocks and there is one counter for them, but how can I make the counter count only for clicks of one element and start counting from 0 when clicking on another? I understand that you can add several counters, but as for me, this is not the best option, setting 40 variables is somehow not right.
This is what the example looks like now:
jsfiddle.net/pnq2qtfj/1
I hope I explained it clearly.

Answer 1

jsfiddle.net/pnq2qtfj/7
or
jsfiddle.net/pnq2qtfj/10
or
jsfiddle.net/pnq2qtfj/11