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.
#J
def recur(a, b, i, j):
    if (i<len(a) and j>=0):
        if (a[i]==b[j-1]):
            return recur(a, b, i+1, j-1)
        else :
            return 1
    else :
        return 0
a = str(input())
b = str(input())
total = int(0)
total += recur(a, b, 0, len(b))
if (total==1):
    print("NO")
else :
    print("YES")
 		  	 	  	 	 	 	  					 	 	 	