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.
name1=input()
name2=input()
i=0
j=0

def delete(name,n):
    first_part=name[:n]
    last_part=name[n+1:]
    return first_part + last_part
    
if len(name1)!=len(name2):
    print("NO")
else:
    for i in range(name1):
        if name1[i]!=name2[-i-1]:
            print("NO")
            
            break
        if i==len(name1)-1 and name1[i]==name2[-i-1]:
            print("YES")
            break
        
    