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 = input()
t = input()

if len(s) != len(t): print("NO")
else:
    f = False
    i = 0
    j = len(t)-1
    while i<len(s) and j >=0:
        
        if s[i] == t[j]:
            i += 1
            j -= 1
            f = True
        else:
            print("NO")
            f = False
            break
    if f == True: print("YES")
