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.
s1=[str(x) for x in input()]
s2=[str(x) for x in input()]
emp1=[]
emp2=[]
def str_to_char(emp,s):

    for i in s:
        for _ in i:
            emp.append(_)
            
str_to_char(emp1,s1)
str_to_char(emp2,s2)
if emp1==emp2[::-1]:
    print("YES")
else:
    print("NO")


