Consider the grammar given below:

X → Px

P → RQ | R

Q → y | w | ε

R → z | ε

Let x, y, z, w, and $ be indexed as follows:

X	y	Z	w	$
1	2	3	4	5

Compute the FOLLOW set of the non-terminal R and write the index values for the symbols in the FOLLOW set in the ascending order. (For example, if the FOLLOW set is {x, y, z, w, $}, then the answer should be 12345)