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.
t = input()
s = input()

t = list(t)
s = list(s)

if len(s) > len(t) or len(t) > len(s):
    print("NO")
else:
    i=0
    j=len(t)-1
    f = 0
    while i < len(t) and j >=0:
        if t[i] == s[j]:
            i+=1
            j-=1
            f = 1
        else:
            print("NO")
            break
    
    if f==1:
        print("YES")