using System;
using System.Collections.Generic;
using static Assistant.Input;
using static Assistant.Debug;
using System.Linq;
using Assistant;
using System.Text;

namespace ABC123D
{
    class Program
    {
        static void Main(string[] args)
        {
            int X = ReadInt;
            int Y = ReadInt;
            int Z = ReadInt;
            int K = ReadInt;

            long[] A = ReadLongs;
            long[] B = ReadLongs;
            long[] C = ReadLongs.OrderBy(x => -x).ToArray();

            long[] AB = new long[X * Y];
            for (int i = 0; i < X; i++)
            {
                for (int j = 0; j < Y; j++)
                {
                    AB[i * X + j] = A[i] + B[j];
                }
            }

            Array.Sort(AB);
            AB = AB.Reverse().ToArray();

            long h = Math.Min(K, X * Y);
            long[] ans = new long[h * Z];

            for (int i = 0; i < h; i++)
            {
                for (int k = 0; k < Z; k++)
                {
                    ans[i * Z + k] = AB[i] + C[k];
                }
            }

            Array.Sort(ans);
            ans = ans.Reverse().ToArray();

            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < K; i++)
            {
                sb.AppendLine(ans[i].ToString());
            }
            Console.Write(sb);
        }


    }

}

namespace Assistant
{
    static class Input
    {
        static List<string> line = new List<string>();
        static int index = 0;
        static String ReadNext()
        {
            if (line.Count <= index) line.AddRange(Console.ReadLine().Split());
            return line[index++];
        }
        public static int ReadInt => int.Parse(ReadNext());
        public static long ReadLong => long.Parse(ReadNext());
        public static int[] ReadInts => Console.ReadLine().Split().Select(int.Parse).ToArray();
        public static long[] ReadLongs => Console.ReadLine().Split().Select(long.Parse).ToArray();
    }

    static class Debug
    {
        static public void Draw2D(int[,] map, int mode = 1)
        {
#if DEBUG
            int W = map.GetLength(0);
            int H = map.GetLength(1);

            int[,] map2 = new int[W + 1, H + 1];
            for (int i = 0; i < W + 1; i++)
            {
                for (int j = 0; j < H + 1; j++)
                {
                    if (i == 0 && j == 0) map2[i, j] = 0;
                    else if (i == 0) map2[i, j] = j - 1;
                    else if (j == 0) map2[i, j] = i - 1;
                    else map2[i, j] = map[i - 1, j - 1];
                }
            }

            for (int i = 0; i < W + 1; i++)
            {
                for (int j = 0; j < H + 1; j++)
                {
                    if (mode == 0) Console.Write(map2[i, j] % 10);
                    if (mode == 1) Console.Write(map2[i, j] + " ");
                }
                Console.WriteLine();
            }
            Console.WriteLine();
#endif
        }

        static void Draw1D(int[] array, int mode = 0)
        {
#if DEBUG
            Console.WriteLine(string.Join(" ", array));
#endif
        }
    }
}


Measured memory_bytes: 118896