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.
def answer(a,b):
    length1=len(a)
    length2=len(b)
    if(length1!=length2):
        return('NO')
    length2=length2-1
    for i in range(length1):
        if(a[i]!=b[(length2-i)]):
            return('NO')
    return('YES')
    
        
a=input()
b=input()

print(answer(a,b))

		 		  	    					 		 	 			 			