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 -*-

s = str(input())
t = str(input())

ls = list(s)
lt = list(t)

a = 0

if len(s) == len(t) and 0 < len(s) <= 100 and 0 < len(t) <= 100:
    for i in range(len(s)):
        if s[i] == t[len(s)-i-1]:
            a += 1

    if a == len(s):
        print("YES")
    else:
        print("NO")
else:
    print("NO")
