N,K = map(int,input().split())
if N//2 + (N%2 != 0) >= K:
  print('YES')
else:
  print('NO') N,K = map(int,input().split()) N map(int,input().split()) map int input().split() ().split () input split K if N//2 + (N%2 != 0) >= K:
  print('YES')
else:
  print('NO') N//2 + (N%2 != 0) >= K N//2 + (N%2 != 0) N//2 N 2 N%2 != 0 N%2 N 2 0 K print('YES') print 'YES' print('NO') print 'NO' K = map(int,input().split()) map(int,input().split()) K N,K = map(int,input().split()) map(int,input().split()) N
N,K = map(int,input().split())
if N//2 + (N%2 != 0) >= K:
  print('YES')
else:
  print('NO')