using System;
using System.Linq;

namespace _02._Excel_Functions
{
    class Program
    {
        static void Main(string[] args)
        {
            int _rows = int.Parse(Console.ReadLine());

            var table = new string[_rows][];

            for (int row = 0; row < table.Length; row++)
            {
                table[row] = Console.ReadLine().Split(", ", StringSplitOptions.RemoveEmptyEntries);
            }

            var command = Console.ReadLine().Split(" ",StringSplitOptions.RemoveEmptyEntries);
            var header = command[1];
            var index = -1;

            for (int col = 0; col < table[0].Length; col++)
            {
                if (table[0][col].Equals(header))
                {
                    index = col;
                    break;
                }
            }

            var result = table;

            switch (command[0])
            {
                case "hide":
                    result = DeleteColumn(index, result);

                    foreach (var row in result)
                    {
                        Console.WriteLine(string.Join(" | ", row));
                    }
                    break;

                case "sort":
                    result = table.Skip(1).OrderBy(x => x[index]).ToArray();

                    Console.WriteLine(string.Join(" | ", table[0]));

                    foreach (var row in result)
                    {
                        Console.WriteLine(string.Join(" | ", row));
                    }
                    break;

                case "filter":
                    var value = command[2];
                    result = table.Skip(1).Where(x => x.Contains(value)).ToArray();

                    Console.WriteLine(string.Join(" | ", table[0]));

                    for (int row = 1; row < table.Length; row++)
                    {
                        if (table[row][index] == value)
                        {
                            Console.WriteLine(string.Join(" | ", table[row]));
                        }
                    }
                    break;
            }
        }

        public static string[][] DeleteColumn(int columnToDelete, string[][] originalArray)
        {
            var result = new string[originalArray.Length][];
            for (int row = 0; row < originalArray.Length; row++)
            {
                int skippedCol = 0;

                result[row] = new string[originalArray[row].Length - 1];

                for (int col = 0; col < originalArray[row].Length - 1; col++)
                {
                    if (skippedCol == columnToDelete)
                    {
                        skippedCol++;
                    }
                    result[row][col] = originalArray[row][skippedCol];
                    skippedCol++;
                }
            }
            return result;
        }
    }
}