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.
word_in_Berlandish=input()
word_in_Birlandish=input()
if 0<len(word_in_Berlandish)<=100 and 0<len(word_in_Birlandish)<=100:
    if word_in_Berlandish==word_in_Birlandish[::-1]:
        print("YES")
    else:
        print("NO")