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=input()
t=input()
List=[0] *len(s)
List_1=[0]*len(s)
if len(s)==len(t) :
	for i in range(len(s)) :
		List[i] =s[i] 
		List_1[i]=t[i]
	List.reverse()
	count=0
	for k in range(len(s)) :
		if List[k] ==List_1[k]:
			count+=1
	if count==len(s) :
		print("YES") 
	else:
		print("NO") 
elif len(s)!=len(t) :
	print("NO") 