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.
s = str(input()).lower()
b = str(input()).lower()
a = []
c = []
c.append(s)
a.append(b[::-1])
if c == a:
    print('YES')
else:
    print('NO')


#number 1
#n = int(input())
#b = str(input()).upper()
#if b.count('A') > b.count('D'):
#    print('Anton')
#elif b.count('A') < b.count('D'):
#    print('Danik')
#else:
#    print('Friendship')
