Order of releasing the semaphores

Question

I was studying the dining philosopher problem (See problem description) and its solution using semaphores, and I came across this :

**Code for the ith philosopher:**
while(1)
{
take_chopstick[i];

   take_chopstick[ (i+1) % 5] ;
EATING THE NOODLE
put_chopstick[i] );

   put_chopstick[ (i+1) % 5] ;
THINKING
}

I had two doubts here:

1. Can the order of putting back the chopsticks be reversed, i.e. the (i+1) th chopstick is put back first, and then the ith chopstick? Why/Why not?

2. In general, when we have two semaphores, do we release that semaphore first, which was locked later? Or are there any guidelines regarding the same?