Explain this python string operation s[:6][::-1]

Question

I am new to python. Please anybody explain the following string operations

s="abcdefghijklmnop"

print s[:6][::-1] #is it first calculating s[:6] and then operating the result with [::-1] ?

Answer 1

"abcdefghijklmnop"[:6][::-1]

1. Take first 6 characters (abcdef).

2. Read the result from the end to the beginning (fedcba).

There is an other better way to get this result:

"abcdefghijklmnop"[5::-1]