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.
y=input("")         #Enter the Berland String
z=input("")         #Enter the Birland String
if len(y)!=len(z):
    print("NO")
    exit()
sum=0
a=[]
b=[]

for i in range(0,len(y)):
    a.append(y[i])
for i in range(0,len(z)):
    b.append(z[i])

a.reverse()
for j in range(0,len(y)):
    if a[j]==b[j]:
        sum=sum+1
if sum==len(y):
    print("YES")
else:
    print("NO")
