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.
s2=input()
t2=input()

l=len(s2)
s=s2.lower()
t=t2.lower()
l2=len(t2)
x="".join(reversed(s2))
y="".join(reversed(t2))
if l2<100 and l<100 and l==l2:
    if t==x and s==y:
        print("YES")
    else :
        print("NO")


	  	 			 	    				   			   	 		