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.
мa=input()
a2=input()
b=len(a)
b1=len(a2)
b2=b
m=0
k=0
c=-1
n=0
for i in range(b):
    while b>0:
        if a[n]==a2[c]:
            m=m+1
        else:
            k=k+1
        b=b-1
        n=n+1
        c=c-1
if b2==m:
    print('YES')
elif b1>b or b>b1 or k>0:
    print('NO')