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.

def check_correct_translation(s, t):
	if(len(s) != len(t)):
		return False

	for i in range(len(s)):
		if(s[i] != t[-(1+i)]):
			return False
	return True


def main():
	s = input()
	t = input()


	if(check_correct_translation(s, t)):
		print('YES')
	else:
		print('NO')


if __name__ == '__main__':
	main()