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