Number_Array_MidExam_30thOfJune2019

using System;
using System.Linq;

namespace Number_Array_MidExam_30thOfJune2019
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] input = Console.ReadLine()
                .Split()
                .Select(int.Parse)
                .ToArray();

            string command = Console.ReadLine();

            while (command != "End")
            {

                string[] splitedCommand = command.Split(" ");
                string commandOne = splitedCommand[0];
                int sumNegative = 0;
                int sumPositive = 0;
                int sumOfAll = 0;

                if (commandOne == "Switch")
                {
                    int index = int.Parse(splitedCommand[1]);

                    for (int i = 0; i < input.Length; i++)
                    {
                        if (i == index)
                        {
                            input[i] *= -1;
                        }
                    }
                }
                else if (commandOne == "Change")
                {
                    int index = int.Parse(splitedCommand[1]);
                    int value = int.Parse(splitedCommand[2]);

                    for (int i = 0; i < input.Length; i++)
                    {
                        if (i == index)
                        {
                            input[i] = value;
                        }
                    }
                }
                else if (commandOne == "Sum")
                {
                    string secretCommand = splitedCommand[1];

                    if (secretCommand == "Negative")
                    {
                        // int sumNegative = 0;

                        for (int i = 0; i < input.Length; i++)
                        {
                            if (input[i] < 0)
                            {
                                sumNegative += input[i];
                            }
                        }

                        Console.WriteLine(sumNegative);
                    }
                    else if (secretCommand == "Positive")
                    {
                      //  int sumPositive = 0;

                        for (int i = 0; i < input.Length; i++)
                        {
                            if (input[i] >= 0)
                            {
                                sumPositive += input[i];
                            }
                        }

                        Console.WriteLine(sumPositive);
                    }
                    else if (secretCommand == "All")
                    {
                       // int sumOfAll = 0;

                        for (int i = 0; i < input.Length; i++)
                        {
                            sumOfAll += input[i];
                        }

                        Console.WriteLine(sumOfAll);
                    }
                }

                command = Console.ReadLine();
            }

            if (command == "End")
            {
                //for (int i = 0; i < input.Length; i++)
                //{
                //    Console.WriteLine(string.Join(" ", input[i]+ " "));
                //}

                foreach (int num in input)
                {
                    if (num >= 0)
                    {
                        Console.Write(num + " ");
                    }
                }
            }

        }
    }
}