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.
# # s = list(map(int, input().split()))
# a = [[int(j) for j in input().split()] for i in range(3)]  ##ввод матрицы с консоли
# a = list(map(int,input().strip().split()))  ввод массива под циклом
s = input()
s2 = input()
n = len(s2)
a = []
for i in range(n-1, -1, -1):
	a.append(s2[i])
ans = 0
for i in range(len(s)):
	if s[i] == a[i]:
		ans+= 1
if ans == len(s):
	print('YES')
else:
	print('NO')