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.
# Translation

s = input()
t = input()

t_aux = ""

for i in range(1,len(t)+1):
    t_aux = t_aux + t[-i]

#print(t_aux)

switch = False

if len(s) == len(t):
    for j in range(len(s)):
        if s[j]==t_aux[j]:
            switch= True
        else:
            switch=False
            print("NO")
            break
if switch==True:
    print('YES')
    
    
    
    
    
    
    
    