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.
s = input()
t = input()
s_list = []
t_list = []

for i in range(len(s)):
    s_list.append(s[i])
for i in range(len(t)):
    t_list.append(t[i])
t_list.reverse()

x = 0

if len(s_list) != len(t_list):
    print("NO")
else:
    for k in range(len(t_list)):
        if t_list[k] == s_list[k]:
            x += 0
        else:
            x += 1
    if x == 0:
        print("YES")
    else:
        print("NO")
