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.
while True:
    n = input("")
    s= input("o ")
    if len(n)<=100 and len(s)<=100:
        break
    else:
        print("enter new w")
k=len(n)
l=k-1
a=0
if len(n)==len(s):
    for i in range(len(n)):
        if n[i]==s[l]:
            a+=1
        l-=1
    if a==k:
        print("yes")
    else:
        print("no")
else:
    print("no")
	   			   	    									 		 		