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.
s = input()
t = input()
n = len(s)
c = 1
w = 0

for i in range(1,n+1): 
    a = c-1
    b = n-c
    if s[a] == s[b]:
        w += 1
    c += 1
    print(a,b,c,n)
if w > 0:
    print("NO")
else:
    print("YES")


    
