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.
str_1 = input()
str_2 = input()
str_1 = str_1.lower()
str_2 = str_2.lower()

if str_1 == str_2 :
    print('NO')
    quit()

str_1 = [a for a in str(str_1)]
str_2 = [a for a in str(str_2)]

str_1.sort()
str_2.sort()

if str_1 == str_2 :
    print("YES")

else :
    print('NO')
 	  			    		  	 					  						