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.
t = list(input())
s = input()
i=0
j=len(t)-1
while(i<j):
    t[i],t[j] = t[j],t[i]
    i=i+1
    j=j-1
x = "".join(t)

if(x==s):
    print("YES")
else:
    print("NO")
     	 	  			  		 	  	 		  	 	