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()

#reverse
reversed_status = False
if t == s[::-1]:
    reversed_status = True

#lowercase
lowercase_status = False
if s.islower():
    lowercase_status = True
#no spaces
no_space_status = False
for i in s:
    if i != " ":
        no_space_status = True
#not empty
not_empty_status = False
if s != "":
    not_empty_status = True
#not exceed 100 symbol
not_exceed_100_status = False
if len(s) <= 100:
    not_exceed_100_status = True

if reversed_status and lowercase_status and no_space_status and not_empty_status and not_exceed_100_status:
    print("YES")
else:
    print("NO")
