Calculating the sum of two integers is a fundamental problem in programming and mathematics. The task is to find the result of adding two given integers. This is a straightforward operation, but understanding how to implement it in different programming languages can help clarify basic programming concepts.

### Understanding the Problem

Given two integers, say `a`

and `b`

, the goal is to compute their sum, denoted as `a + b`

. For example, if `a = 5`

and `b = 7`

, the sum is:

[ 5 + 7 = 12 ]

### Step-by-Step Approach

**Input**: Read or receive two integers.**Addition**: Compute the sum of the two integers.**Output**: Display or return the result.

### Example

Consider two integers:

`a = 8`

`b = 13`

To find the sum:

[ \text{Sum} = 8 + 13 = 21 ]

### Code Examples

Let’s see how to implement the addition of two integers in different programming languages.

#### 1. Python

```
def add_two_integers(a, b):
return a + b
# Example usage
a = 8
b = 13
result = add_two_integers(a, b)
print("The sum of", a, "and", b, "is:", result)
```

#### 2. JavaScript

```
function addTwoIntegers(a, b) {
return a + b;
}
// Example usage
const a = 8;
const b = 13;
const result = addTwoIntegers(a, b);
console.log("The sum of", a, "and", b, "is:", result);
```

#### 3. Java

```
public class Main {
public static int addTwoIntegers(int a, int b) {
return a + b;
}
public static void main(String[] args) {
int a = 8;
int b = 13;
int result = addTwoIntegers(a, b);
System.out.println("The sum of " + a + " and " + b + " is: " + result);
}
}
```

#### 4. C++

```
#include <iostream>
int addTwoIntegers(int a, int b) {
return a + b;
}
int main() {
int a = 8;
int b = 13;
int result = addTwoIntegers(a, b);
std::cout << "The sum of " << a << " and " << b << " is: " << result << std::endl;
return 0;
}
```

#### 5. C

```
using System;
class Program {
public static int AddTwoIntegers(int a, int b) {
return a + b;
}
static void Main() {
int a = 8;
int b = 13;
int result = AddTwoIntegers(a, b);
Console.WriteLine("The sum of " + a + " and " + b + " is: " + result);
}
}
```

Calculating the sum of two integers is a basic operation that involves reading the integers, adding them, and then outputting the result. The implementation is quite similar across different programming languages, and the key concept is understanding how to perform basic arithmetic operations and output results. The provided code examples illustrate this operation in Python, JavaScript, Java, C++, and C#, each of which follows a simple pattern of defining a function or method to perform the addition and then using it in the main program to compute and display the result.