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