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.
expression1 = input()
expression2 = input()


def check(expression1,expression2):
    if len(expression2) != len(expression2):
        print("NO")
        return
    else:
        for i in range(len(expression1)):
            if expression1[i] == expression2[-i-1]:
                continue
            else:
                print("NO")
                return
    print("YES")
    return

check(expression1,expression2)