using System;

using System.Collections.Generic;

​

public class Dinglemouse

{

    Dictionary<string, string> data = new Dictionary<string, string>();

    public Dinglemouse()

    {

    }

​

    public Dinglemouse SetAge(int age)

    {

        if (!data.ContainsKey("age"))

            data.Add("age", age.ToString());

        else

            data["age"] = age.ToString();

        return this;

    }

​

    public Dinglemouse SetSex(char sex)

    {

        if (!data.ContainsKey("sex"))

            data.Add("sex", sex.ToString());

        else

            data["sex"] = sex.ToString();

        return this;

    }

​

    public Dinglemouse SetName(string name)

    {

        if (!data.ContainsKey("name"))

            data.Add("name", name);

        else

            data["name"] = name;

        return this;

    }

​

    public string Hello()

    {

        string res = "Hello.";

        //"My name is {name}. I am {age}. I am {(sex == 'M' ? "male" : "female")}.";

        foreach (KeyValuePair<string, string> pair in data){

                switch (pair.Key){

                    case "age":

                        res += " I am " + pair.Value + ".";

                        break;

                    case "name":

                        res += " My name is " + pair.Value + ".";

                        break;

                    case "sex":

                        res += " I am "+ (pair.Value == "M" ? "male" : "female") + ".";

                        break;

                }

        }

        return res;

    }

}