import string
def cleanstring(s):
    """
    Remove spaces and punctuation from the string.
    Also convert to all lower case.
    """
    s = string.lower(s)
    s = string.replace(s, " ", "")
    s = string.replace(s, ".", "")
    s = string.replace(s, ",", "")

    return s

def ispalindrome(str):
    """
    Return true if the string is a palindrome.
    """
    str = cleanstring(str)
    length = len(str)
    nos = 0
    for pos in range(length/2):
        pos2 = length-pos-1
        if str[pos]!=str[pos2]:
            # found a mismatch
            nos = nos + 1
    if nos==0:
        return True
    else:
        return False

str = raw_input("Enter a string: ")

if ispalindrome(str):
    print "Yes"
else:
    print "No"