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.
l=list(input())
l1=list(input())
 
if len(l)!=len(l1):
    print("NO")
    exit(0)
i=0;
length=len(l)
while (i<length):
    #print(l[i],l1[length-i-1])
    if l[i]!=l1[length-i-1]:
         print("NO")
         exit(0)
    i+=1
print("YES")