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.
def IsTrue(s1,s2):
        if len(s1) != len(s2):
                return "NO"
        else:
                for i in range(len(s1)):
                        if s1[i] == s2[len(s2) - 1 - i] and s1[i] != 's':
                                continue
                        else:
                                return "NO"
                
                return "YES"

s1 = str(input())
s2 = str(input())
print(IsTrue(s1,s2))

