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.
word1=input()
word2=input()
length1=len(word1)
length2=len(word2)
if(length1!=length2):
	print('YES')
	exit(0)
for i in range(length1):
	if(word1[i]!=word2[length1-i-1]):
		print('NO')
		exit(0)
print('YES')