A question about Paris' address system?

Question

How do I know which side of the street a shop is if the address is an odd number/even number?

Answer 1

Even on right, odd on the left of the street, knowing that the beginning of the street is that which is closer to the river Seine (and following the river for the parallel streets: east to west). Napoléon established this system in 1805.

Answer 2

even on the left