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.
def Problem():
    S1=input()
    S2=input()
    Test=True
    for i in range(len(S1)):
        if S1[i]==S2[i] or S1.find(S1[i])!=S2.find(S2[i]):
            Test=False
            break
    if Test:
        print('YES')
    else:
        if Palindrome(S1):
            print('YES')
        else:
            print('NO')
def Palindrome(S):
    i=0
    j=len(S)-1
    while i<j:
        if S[i]!=S[j]:
            return False
        else:
            i+=1
            j-=1
    return True
