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()
sr= input()
srr=[sr[k] for k in range(0,len(sr))]
for i in range(0,int(len(sr)/2)):
    srr[i] = sr[len(sr)-i-1]
    srr[len(sr) - i - 1] = sr[i]
sr = ''.join(srr)
if sr==s : print('YES')
else: print("NO")