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.
# from sys import stdin

# entrada = (stdin.read().split())

# first = next(entrada)
# second = next(entrada)

def check(first, second):
    for i in range(0, len(first)):
        if (first[i] != second[len(first) - 1 - i]
            or first[len(first) - 1 - i] != second[i]):
            print("NO")
            return
    
    print("YES")
    return

first = input()
second = input()
check(first, second)
