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.
palabra = input()
palabra2 = input()

cadena = []
cadena1 = []
cadena2 = []

j=len(palabra)-1

for letra in palabra:
    cadena.append(letra)

i=len(cadena)-1

while i >= 0:
    cadena1.append(cadena[i])
    i-=1

for letra in palabra2:
    cadena2.append(letra)


if cadena1 == cadena2:
    print("YES")

else:
    print("NO")