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.
n=input()
m=input()
l1=list(n)
l1.reverse()
l2=list(m)
f=0
if(len(l2)>len(l1)):
    print("NO")
else:
    for i in range(len(l1)):
        if(l1[i]!=l2[i]):
            f=1
            break
    if(f==0):
        print("YES")
    else:
        print("NO")
    
