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().replace(" ", "").lower()
t = input().replace(" ", "").lower()

ls= len(s)-1
lt=len(t)-1


if(ls != lt):
 print("NO")
else :

     ls=0   
     while(lt >= 0):
        
        if(s[ls] != t[lt]):
            print("NO")
            break
        ls=ls+1
        lt=lt-1

     if(lt<0):
      print("YES")


  
