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.
if __name__ == '__main__':
	s = input()
	t = input()
	i = -1
	j = 0
	fianl = 1
	while j < len(s):
		if s[j] != t[i]:
			fianl = -1
			break
		j+=1
		i-=1
	if fianl == -1:
		print('NO')
	else:
		print('YES')