n,k=map(int,input().split())
print("YES" if n>=2*k-1 else "NO") n,k=map(int,input().split()) n map(int,input().split()) map int input().split() ().split () input split k print("YES" if n>=2*k-1 else "NO") print "YES" if n>=2*k-1 else "NO" n>=2*k-1 n 2*k-1 2*k 2 k 1 "YES" "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())
print("YES" if n>=2*k-1 else "NO")