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.
lines = []
for i in range(2):
	lines.append(input())
#print(lines)

l = len(lines[0])
comp = ""
for i in range(l):
	comp = lines[0][i] + comp

if comp == lines[1]:
	print("YES")
else:
	print("NO")
 	 				   	 	 		   		   				  	