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.
s1 = input()
s2 = input()
n1 = len(s1)
n2 = len(s2)
i = 0
j = n2 - 1
count = 0
if len(s1) == len(s2):
    while i < n1 and j >= 0:
        if s1[i] == s2[j]:
            i += 1
            j -= 1
            count += 1
        else:
            break
    if count == n1:
        print("YES")
    else:
        print("NO")

else:
    print("NO")