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()
t = input()
if len(s)!=len(t):
    print ("NO)
    exit()
else:
    for i in range (0,len(s)):
        #print (i)
        if len(s)%2 !=0:
            if (len(s)/2) == i :
                if s[i]!=t[i]:
                    #print i,s[i],t[i]
                    print ("NO")
                    exit()
            elif s[i] != t[len(s)-i-1]:
                print ("NO")
                exit()        
        elif s[i] != t[len(s)-i-1]:
            print ("NO")
            exit()
        else:
            continue
        
            
            
            
print ("YES")            