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=input()
s=input()
n=len(t)
c=0
if n==len(s):
	for i in range(n):
		if t[i]==s[n-1-i]:
			c+=1
	if c==n:
		print("YES")
	else:
		print("NO")
else:
	print("NO")

		 	     			  	   	 		 		  		 	