n,k = input().split()
n = int(n)
k = int(k)
for l in range(k):
  l = 2*l +1
  c = l
if c <= n:
  print('YES')
else:
  print('NO') n,k = input().split() n input().split() ().split () input split k n = int(n) n int(n) int n k = int(k) k int(k) int k for l in range(k):
  l = 2*l +1
  c = l l range(k) range k l = 2*l +1 l 2*l +1 2*l 2 l 1 c = l c l if c <= n:
  print('YES')
else:
  print('NO') c <= n c n print('YES') print 'YES' print('NO') print 'NO' l = 2*l +1 2*l +1 l n = int(n) int(n) n k = int(k) int(k) k c = l l c k = input().split() input().split() k n,k = input().split() input().split() n
n,k = input().split()
n = int(n)
k = int(k)
for l in range(k):
  l = 2*l +1
  c = l
if c <= n:
  print('YES')
else:
  print('NO')