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 python
# coding=utf-8
'''
Author: Deean
Date: 2021-11-03 23:44:43
LastEditTime: 2021-11-03 23:46:58
Description: Translation
FilePath: CF41A.py
'''


def func():
    s1, s2 = input().strip(), input().strip()
    return "YES" if s1[::-1] == s2 else "NO"


if __name__ == '__main__':
    ans = func()
    print(ans)
