using System;
using System.Collections.Generic;
using System.IO;

namespace TestDelete
{
    class Solution
    {
        static void Main(String[] args)
        {
            int i = 4;
            double d = 4.0;
            string s = "HackerRank ";
            // Declare second integer, double, and String variables.
            int myI = 12;
            double myD = 4.0;
            string myS = "is the best place to learn and practice coding!";

            // Read and save an integer, double, and String to your variables.

            int input1 = i + myI;
            double input2 = d + myD;
            // input3 = Convert.ToDouble(d);
            string myString = s + myS;

            // Print the sum of both integer variables on a new line.
            Console.WriteLine(input1);
            // Print the sum of the double variables on a new line.
            Console.WriteLine(input2);
            // Concatenate and print the String variables on a new line
            Console.WriteLine(myString);
            // The 's' variable above should be printed first.

        }
    }
}