using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        string test = "blabbla|blabla \"asdf|asdg\" asdf|ffff|gasd";

        Console.WriteLine(ReplaceWithinQuotes(test, '|', '-'));

    }

    private static string ReplaceWithinQuotes(string input, char from, char to)

    {

        StringBuilder sb = new StringBuilder();

        sb.Append(input);

        bool withinQuotes = false;

        for(int i = 0; i < input.Length; i++)

        {

            if(input[i] == '\"')

            {

                withinQuotes = !withinQuotes;

            }

            if(withinQuotes && input[i] == from)

            {

                sb[i] = to;

            }

        }

        return sb.ToString();

    }

}