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.

# Taking input for the first line
# Taking input for the first line
line1 = map(str, input().split())

# Taking input for the second line
line2 = map(str, input().split())

# Converting the map objects to lists
line1_list = list(line1)
line2_list = list(line2)
a = str(line2_list[0])
if a[::-1] == line1_list[0]:
    print("YES")

else:
    print("NO")





# x=-1
# list_word = []
# for i in line2_list[0]:
#     real = (line2_list[0][x])
#     list_word[0].append(real)
#     x-=1
#     print(real)
# v = int(len(list_word)-1)
# print(list_word)
