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 math

a = {}
#n = int(input())
c = 0
b = input()
i = 0
j = 0

arr = input()


#for i in range(n):
#    a.append([int(j) for j in input().split()])
    
#a, b, c = map(int, input().split())

c = len(b)
for i in range(c):
    if arr[i] != b[c - i - 1]:
        print("NO")
        break
    j += 1

if j == c:
    print("YES")
    