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 by TheMisfits 
from sys import stdin
_input = stdin.readline
_int, _str = int, str
def solution():
    s = _input().rstrip('\n')
    s_2 = _input().rstrip('\n')[::-1]
    if s == s_2:
        print("YES")
    else:
        print("NO")
solution()