Program to add two numbers in C++

#include <iostream>
using namespace std;

int main()
{
	int num1;	//to store first number
	int num2;	//to store second number
	int add;	//to store addition 
	
	//read numbers
	cout<<"Enter first number: ";
	cin>>num1;
	cout<<"Enter second number: ";
	cin>>num2;
	
	//calculate addition
	add=num1+num2;
	
	//print addition
	cout<<"Addition is: "<<add<<endl;
	
	return 0;
}

Output

Enter first number: 100 
Enter second number: 200
Addition is: 300