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.
#!/usr/bin/env python
# coding: utf-8

# In[204]:


# # n = int(input())
# # line = list(map(int, input().split()))
# # line = list(str(input()))


# In[322]:


line1 = list(str(input()))
line2 = list(str(input()))


# In[323]:


if line1[::-1] == line2:
    print('YES')
else:
    print('NO')


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