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.
import collections
s=input()
d=input()
l1=[]
l2=[]
a=len(s)
b=len(s)
i=0
while(a):
    l1.append(s[a-1])
    a=a-1
while(b):
    l2.append(d[i])
    i=i+1
    b=b-1
if collections.Counter(l1) == collections.Counter(l2):
    print ("YES")
else :
    print ("NO")