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()
count=0
tl=list(t)
sl=list(s)
if(len(sl) != len(tl)): 
    print("NO")

else:
    for i,l in enumerate(tl):
        if(l == sl[len(sl)-i-1]):
            count+=1

    if(count == len(s)):
        print("YES") 
    else:
        print("NO")