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.
str1 = str(input())
str2 = str(input())

size = int(str1.__len__())
size1 = int(str2.__len__())


if size == size1:
    for x in range(size):
        if str1[x] == str2[size1 - 1]:
            size1 -= 1
            flag = 1
            pass
        else:
            flag = 0
            break
    if flag == 1:
        print("YES")
    else:
        print("NO")

else:
    print("NO")