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.
# for _ in range(int(input())):
#     c=1
#     n,k=map(int,input().split())
#     l=[]
#     l.append(input())
#     for _ in range(1,n):
#         x=input()
#         if(x==l[0]):
#             c+=1
#     print(c)


# for _ in range(int(input())):
#     l=[]
#     n=int(input())
#     if(n==1):
#         print(1)
#     elif(n%2!=0):
#         print(-1)
#     else:
#         for i in range(1,n+1):
#             if(i%2==0):
#                 l.append(i-1)
#             else:
#                 l.append(i+1)
#         print(*l)

n=input()
m=input()
if(n[::1]==m):
    print("YES")
else:
    print("NO")