n = input()

type = 1
cnt = 0
v = 0
mode = 1
for i in range(len(n)):
	if type == 1 and n[i] == "0":
		type = 0
	elif type == 0 and n[i] == "1":
		mode = 0
	if n[i] == "1":
		cnt += 1

#print(cnt, type, mode)

if mode and cnt > 1:
	print("Yes")
elif cnt == 2:
	print("Yes")
else:
	print("No")