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.
berl =input()
birl = input()
e= []
i =[]
for char in berl:
    e+=char
#print(e)
for char in birl:
    i+=char
#print(i)
if len(e) != len(i):
    print('NO')
    exit()
k =0
for  m in range(len(e)):
    if e[m] ==i[(len(e)-1) -m]:
        k =k+1
        continue
if k == len(e):
    print('YES')
else:
    print('NO')