n = input()
x = []
cnt = 0
for i,c in enumerate(n):
  if c == "1": cnt += 1
  if i == 0:
    x.append(c)
  else:
    if n[i-1] == c: continue
    else:
      x.append(x)

if cnt == 1: print("No")
elif cnt == 2: print("Yes")
elif len(x) == 1:print('Yes')
elif len(x) == 2:
  print('Yes')
else:
  print('No')