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, t = input().split()

def compare(s,t):
    if len(s) != len(t):
        print("NO")
        return

    l,r = 0, len(t) - 1

    while l <= r:
        if s[l] != t[r]:
            print("NO")
            return
        l += 1
        r -= 1

    print("YES")

compare(s,t)