The translation from the Berland language into the Birland language is not an easy task. Those languages are very similar: a berlandish word differs from a birlandish word with the same meaning a little: it is spelled (and pronounced) reversely. For example, a Berlandish word code corresponds to a Birlandish word edoc. However, it's easy to make a mistake during the «translation». Vasya translated word *s* from Berlandish into Birlandish as *t*. Help him: find out if he translated the word correctly.
The first line contains word *s*, the second line contains word *t*. The words consist of lowercase Latin letters. The input data do not consist unnecessary spaces. The words are not empty and their lengths do not exceed 100 symbols.
#CodeForces
#Translation
#Python 3.6.5

import sys

s = input()
t = input()

left = 0
right = 0
condition = True 
while(left < len(s) and right < len(t)):
    if s[left] != s[right]:
        print("NO")
        condition = False
        break 
    else:
        left += 1
        right += 1

if(condition):
    print("YES") 
        
