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=str(input())
t=str(input())
i=0
lists=[]
listt=[]
listcheck=[]
while(i<len(s)):
    lists.append(s[i])
    listt.append(t[i])
    i=i+1
i=len(s)-1
while(i>=0):
    listcheck.append(s[i])
    i=i-1
if(listcheck==listt):
    print("YES")
else:
    print("NO")