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 translation():
    s = input()
    t = input()

    s1 = [i for i in str(s)]
    t1 = [j for j in str(t)]

    if s.islower() and t.islower() and len(s) == len(t):
        if len(s) < 100 and len(t) < 100:
            if s1[0::] == t1[::-1]:
                print("YES")
            else:
                print("NO")
    else:
        print("NO")

translation()