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.
# -*- coding: utf-8 -*-
"""
Created on Sun Nov 20 20:42:42 2022

@author: Lenovo
"""

s1 = input()
s2 = input()
n1 = len(s1)
n2 = len(s2)
i = 0
j = n2 -1

while i<n1 and j>=0:
    if s1[i] != s2[j]:
        print('NO')
        break
    i += 1
    j -= 1

if i == n1:
    print('YES')