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.
######  Salah_G  ######
import sys
x=str(input())
y=str(input())
c=0
j=0
if len(x)!=len(y):
    print("NO")
    sys.exit(0)
for i in range(len(x)-1,-1,-1):
    if x[j]==y[i]:
        c+=1
        j+=1
    else :
        break
    

if (c==len(x)):
     print("YES")
else :
     print("NO")