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.
name1 = input()
name2 = input()
def find(name1, name2):
    
    len1 = len(name1)
    len2 = len(name2)
    
    if(len1!=len2):
        return "NO"
        
    for i in range(0,len1):
        if(name1[i]!=name2[len1-i-1]):
            return "NO"
            
            
    return "YES"
    
f=find(name1,name2)
print(f)