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.
x = input()
k = input()
lst = []
lstO = []
cnt = 0
for i in range(len(x)):
    lst.append(x[i])
    if(lst[i] == 't'):
        lst[i] = 's'
    else:
        pass
lst.reverse()

for i in range(len(x)):
    lstO.append((k[i]))
for i in range(0, len(x)):
    if(lstO[i] != lst[i]):
        print("NO")
        break
    else:
        cnt +=1
if(cnt>0):
    print("YES")
