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.
n=input()
s=input()
size=len(n)
if(len(n)!=len(s)):
    print("NO")
    i=n
for i in range(0,n):
    if(n[i]==s[n-1-i]):
        continue
    if(n[i]==s[n-1-i] and i==n-1):
        print("YES")
    if(n[i]!=s[n-1-i]):
        print("NO")
