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.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Mon Oct 19 00:20:59 2020

@author: Nille
"""

##Problem: 41A

s = str(input())
t = str(input())
wordLength = len(s)

tInit = t.split()
tList = []
for i in tInit[0]:
    tList.append(i)

revTList = []
for i in range(0,wordLength):
    revTList.append(tList[-1])
    tList.pop(-1)

revT = ""
for i in revTList:
    revT += i
    
if revT == s:
    print("YES")
else:
    print("NO")