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 Wed Aug  4 14:26:39 2021

@author: nijhum
"""

s=str(input())
t=str(input())
m=s[::-1]
if t==m:
    print("YES")
else:
    print("NO")
##doing it manually
# d=-1
# c=0
# e=len(s)
# for i in range(e):
#     if s[i]==t[d]:
#         c+=1
#         d=d-1
#         if d<-e:
#             break
# if c==e:
#     print('YES')
# else:
#     print("NO")