n,k=map(int,input().split())
INF=int(1e9)
MIN=[INF]*(n+1)
MAX=[-INF]*(n+1)
MIN[1]=MAX[1]=k
for i in range(1,n):
  if MIN[i]==INF or MAX[i]==0:
    continue
  if i*2<=n:
    MIN[i*2]=min(MIN[i*2],max(MIN[i]-1,0))
    if MAX[i]!=0:
      MAX[i*2]=max(MAX[i*2],MAX[i]-1)
  if i+3<=n:
    MIN[i+3]=min(MIN[i+3],max(MIN[i]-1,0))
    if MAX[i]!=0:
      MAX[i+3]=max(MAX[i+3],MAX[i]-1)
print('YNEOS'[not 0<=MAX[n]::2])