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()
k=input()


count=0
if(len(s) != len(k)):
    print('NO')
else:
    i=0
    j=len(s)-1
    while(i < len(s)):

        if(s[i] == k[j]):
            count=count+1
            i=i+1
            j=j-1

        else:
            i=i+1
            j=j-1

    
    if(count == len(s)):
        print('YES')

    else:
        print('NO')
        


