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