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.
berlandish_word = input()
birlandish_word = input()

word_len = len(berlandish_word)

for i in range(word_len):
	if berlandish_word[i] != birlandish_word[(word_len-1)-i]
		print('NO')
		break

	if i == (word_len-1):
		# It's in the last char of berlandish word and it was equal to
		#  first char of birlandish word.
		print('YES')
