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.
#input number of stones on the table
s = input()
t = input()
count_s = int(len(s))
count_t = int(len(t))


#condition
while s != s.lower() or s != s.strip() or s == '' or count_s > 100 or t != t.lower() or t != t.strip() or t == '' or count_t > 100:
    if t != t.lower() or t != t.strip() or t != '' or count_t > 100:
        s = input()
        count_s = int(len(s))
    if t != t.lower() or t != t.strip() or t != '' or count_t > 100:
        t = input()
        count_t = int(len(t))

# reverse string
reverse_s = s[::-1]

# comparing string
if reverse_s == t:
    print('YES')
else:
    print('NO')
				 		  		    					  	 				  	