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.
chaine1=input()
chaine2=input()
i=0
verif=True
if len(chaine1)!=len(chaine2):
    print("NO")
else:
    
    
    for i in range(len(chaine1)):
        if chaine1[i].upper()!=chaine2[len(chaine2)-i-1].upper():
            verif=False
            break
        
    if verif==True:
        print("YES")
    else:
        print("NO")
        