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 = input()
t = input()

flag= True

# eliminate words of different legths

if len(str) == len(t):
    start= 0
    end= len(t)
    while(start< len(str)):
        if s[start] != t[end-1]:
            flag= False
        else:
            start += 1
            end-= 1
else:
    flag= False
if falg:
    print('YES')
else:
    print('NO')