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.

a = input()
x = input()
#print(a)
b = []
c = []
for i in a:
    b.append(i)
#print(b)
#for i in range(0,len(b),2):
#    print(i)
#    c.append(b[i])
b.reverse()
#print(b)
wynik = ''
for i in b:
    wynik = wynik + i
#print(wynik)
if wynik == x:
    print('YES')
else:
    print('NO')
