def isPal(n):
r=0
nn=n
while (n>0):
k=n%10
r=r*10+k
n=n//10
return r==nn
p=int(input())
if isPal(p):
print("Да")
else:
print("Нет")
ZGVmIGlzUGFsKG4pOgoJcj0wCglubj1uCgl3aGlsZSAobj4wKToKCQlrPW4lMTAKCQlyPXIqMTArawoJCW49bi8vMTAKCXJldHVybiByPT1ubgoJCnA9aW50KGlucHV0KCkpCmlmIGlzUGFsKHApOgoJcHJpbnQoItCU0LAiKQplbHNlOgoJcHJpbnQoItCd0LXRgiIpCgk=