C++ Program to print sum of n natural numbers using do while

Program

#include<iostream>
using namespace std;
int main()
{
	int n, count, sum;
	sum = 0;
	count = 1;
	cout << "Enter the value of n\t";
	cin >> n;
	do
	{
		sum += count;
		count++;
	} while(count <= n);
	cout << "Sum of first " << n << " natural numbers is: "<< sum << endl;
    return 0;
}

Output

$ g++ sum-of-n-natural-numbers-using-do-while.cpp 
$ ./a.out 
Enter the value of n    80
Sum of first 80 natural numbers is: 3240