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 = list(input())
string2 = list(input())
total_length = len(string1)
x = len(string1)
string3 = [None] * len(string1)
total = 0
for i in range(len(string1)):
    string3[i] = string1[x-1]
    x -= 1
string1 = string3
for j in range(len(string1)):
    if string1[j] == string2[j]:
        total += 1
if total == total_length:
    print("YES")
else:
    print("NO")