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.
# tc = int(input())
tc = 1
while tc:
    # inp = [int(x) for x in input().split()]
    # n = int(input())
    # n, c, q = inp[0], inp[1], inp[2]
    s = input()
    t = input()
    # a = [int(x) for x in input().split()]
    s_index = 0
    t_index = len(t) - 1
    if len(s) != len(t):
        print("NO")
    for i in range(len(s)):
        if s[s_index] != t[t_index]:
            print("NO")
            break
        s_index += 1
        t_index -= 1
    else:
        print("YES")
    tc -= 1
