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 trad(ch1,ch2):
    n=len(ch1)
    for i in range(n):
        if ch1[i]!=ch2[n-i-1]:
            return False
    return True
def out(A):
    if A==True:
        print('YES')
    else:
        print('NO')
ch1=str(input())
ch2=str(input())
out(trad(ch1,ch2))