using System; using System.Collections.Generic; using System.Linq; using System.Numerics; static public class Program { static public void Main() { var n = readInteger().Validate(x => 1 <= x && x <= 100000); var A = readInteger(2 * n).ValidateArray(x => -100000 <= x && x <= 100000); Array.Sort(A); readEOF(); var neg = new List(); var pos = new List(); var zero = new List(); foreach (var x in A) if (x > 0) pos.Add(x); else if (x == 0) zero.Add(x); else neg.Add(-x); neg.Sort(); pos.Sort(); int dry = 0, wet = 0, moist = 0; { var p = 0; var q = 0; var a = zero.Concat(pos).ToArray(); var rem = 0; while (p < neg.Count && q < a.Length) { if (neg[p] > a[q]) { //Console.WriteLine("{0} {1}", neg[p], a[q]); dry++; p++; q++; } else { p++; rem++; } } dry += (neg.Count + rem - p) / 2; } { var p = 0; var q = 0; var a = zero.Concat(neg).ToArray(); var rem = 0; while (p < pos.Count && q < a.Length) { if (pos[p] > a[q]) { wet++; p++; q++; } else { p++; rem++; } } wet += (pos.Count - p + rem) / 2; } { var p = 0; var q = 0; while (p < pos.Count && q < neg.Count) { if (pos[p] > neg[q]) q++; else if (pos[p] < neg[q]) p++; else { moist++; p++; q++; } } moist += zero.Count / 2; } Console.WriteLine("{0} {1} {2}", dry, wet, moist); } static public void Swap(ref T a, ref T b) { var tmp = a; a = b; b = tmp; } static int readInteger() { var s = Console.ReadLine(); return int.Parse(s); } static int[] readInteger(int n) { var s = Console.ReadLine().Split(' '); if (s.Length != n) throw new Exception(string.Format("invalid input, expected{0} actual{1}", n, s.Length)); var ret = new int[n]; for (int i = 0; i < n; i++) ret[i] = int.Parse(s[i]); return ret; } static string[] readString(int n) { var s = Console.ReadLine().Split(' '); if (s.Length != n) throw new Exception(string.Format("invalid input, expected{0} actual{1}", n, s.Length)); return s; } static void readEOF() { if (Console.In.Peek() >= 0) throw new Exception("invalid input too long input file"); } } static public class Ex { static public T Validate(this T input, Func f) { if (!f(input)) throw new Exception("invalid input"); return input; } static public T[] ValidateArray(this T[] input, Func f) { foreach (var x in input) if (!f(x)) throw new Exception("invalid input"); return input; } }