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.
a = input()
b = input()
cnt = 0
c = len(b) - 1

while c > -1:
    if len(a) == len(b):
        if a[cnt] == b[c]:
            c -= 1
            cnt += 1
            if c == -1:
                print("YES")
                break
        else : 
            print("NO")
            break 
    else :
        print("NO")
        break