The Program in C# Program to Print the Sum of two numbers is given below:

using System;

namespace SumOfTwoNumbers
{
    class Program
    {
        static void Main(string[] args)
    
        {

            Console.WriteLine("Hello Codeauri Famuly, Enter the first number and Second number here to find their sum: ");
            Console.WriteLine("Well, enter the first number: ");
            int num1 = Convert.ToInt32(Console.ReadLine());
            
            Console.WriteLine("Similarly,enter the second number: ");
            int num2 = Convert.ToInt32(Console.ReadLine());
            
            int sum = num1 + num2;
            Console.WriteLine("Okay, the sum of " + num1 + " and " + num2 + " is: " + sum);
        }
    }
}

Output:

Hello Codeauri Famuly, Enter the first number and Second number here to find their sum:
Well, enter the first number:
20550226
Similarly,enter the second number:
20560423
Okay, the sum of 20550226 and 20560423 is: 41110649

Pro-Tips💡

Here’s a step-by-step explanation of the above code:

1. using System;: This line imports the System namespace, which contains many useful classes, including the Console class that we will use to interact with the console.
2. namespace SumOfTwoNumbers: This line declares a new namespace called SumOfTwoNumbers. A namespace is used to organize code and prevent naming collisions with other code in different namespaces.
3. class Program: This line declares a new class called Program. The Main method will be defined inside this class.
4. static void Main(string[] args): This line declares the Main method, which is the entry point for the program. The Main method is static, meaning it can be called without creating an instance of the class. The void return type means that the Main method doesn’t return a value. The string[] args parameter is an array of strings that can be passed as command-line arguments to the program.
5. Console.WriteLine("Hello Codeauri Famuly, Enter the first number and Second number here to find their sum: ");: This line writes a greeting message to the console using the WriteLine method of the Console class.
6. Console.WriteLine("Well, enter the first number: ");: This line writes a prompt message asking the user to enter the first number.
7. int num1 = Convert.ToInt32(Console.ReadLine());: This line reads the user’s input as a string using the ReadLine method of the Console class, and converts it to an integer using the Convert.ToInt32 method. The result is stored in the num1 variable.
8. Console.WriteLine("Similarly,enter the second number: ");: This line writes a prompt message asking the user to enter the second number.
9. int num2 = Convert.ToInt32(Console.ReadLine());: This line reads the user’s input for the second number and converts it to an integer, just like in step 7. The result is stored in the num2 variable.
10. int sum = num1 + num2;: This line calculates the sum of num1 and num2 and assigns the result to the sum variable.
11. Console.WriteLine("Okay, the sum of " + num1 + " and " + num2 + " is: " + sum);: This line writes the result of the calculation to the console, concatenating the values of num1, num2, and sum with string literals to create the desired output.