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.
text1 = input()
text2 = input()
lentext = len(text1)
reversetext = ""
for x in range(lentext+1):
    reversetext = reversetext + text1[lentext-x:lentext-x+1]
if text2 == reversetext:
    print("YES")
else:
    print("NO")
quit()
   	 		 	    		  	 	    	 		