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.
string1 = input()
string2 = input()
avail = 0
if len(string1) != len(string2):
    print("NO")
else:
    n = len(string1)
    for i in range(0, n):
        if string1[i] != string2[n-1-i]:
           avail = 1
           print("NO")
           break

    if avail == 0:
        print("YES")
