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.
string1=input().split()
string2=string[:]
string=input()
i=0
while i<len(string1):
	string1[i]=string2[n-1-i]
	i+=1
j=0
g=''
for h in string1:
	g+=h
if g==string2:
	print('YES')
else:
	print('NO')
	
	
	
