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.
def stringReverse(str):
    reversedStr = [None] * len(str)
    j = 0
    for i in reversed(range(len(str))):
        reversedStr[j] = str[i]
        j+=1
    return "".join(reversedStr)

inputStr = list(input())
inputReversedStr = input()
reverseStr = stringReverse(inputStr)
print("YES" if reverseStr == inputReversedStr else "NO")
