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_s = input()
word_t = input()

len_word_s = len(word_s)

count = 0
if(len_word_s != len(word_t)):
    print("NO")
else:
    for i in range(len_word_s):
        if(word_s[len_word_s-i-1] == word_t[i]):
            count += 1
        
    if(count == len_word_s):
        print("YES")
    else:
        print("NO")
