import sys
input=lambda:sys.stdin.readline().rstrip()
S=input()
cnt=0
toggle=-1
prev='2'
for i in S:
	cnt+=int(i)
	toggle+=(prev!=i)
	prev=i
if cnt==1:
	print("No")
elif cnt==2 or toggle<=1:
	print("Yes")
else:
	print("No")