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.
w_ber=input()
w_bir=input()
if len(w_ber)%2==0:
    x=int(len(w_ber)/2)    
    for i in range(len(w_ber)):
        if w_ber[i]!=w_bir[len(w_ber)-1-i]:
            print('NO')
            break
    else:
        print('YES')
else:
    x=int((len(w_ber)+1)/2)
    for i in range(len(w_ber)):
        if w_ber[i]!=w_bir[len(w_ber)-1-i]:
            print('NO')
            break
    else:
        print('YES')