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()
i=0
r=len(s)-1
if (len(s)==len(t) and len(s)>=1 and len(s)<=100 and len(s)>=1 and len(s)<=100):
    while(i<len(s) and r>=0):
        if(s[i]==t[r]):
            i+=1
            r-=1
            is_plaindrome=True
        else:
            is_plaindrome=False
            break
    if(is_plaindrome):
        print("YES")
    else:
        print("NO")