C Program to sum of n natural numbers using do while

Program

#include<stdio.h>
void main()
{
	int n, count, sum;
	sum = 0;
	count = 1;
	printf("Enter the value of n\t");
	scanf("%d", &n);
	do
	{
		sum += count;
		count++;
	} while(count <= n);
	printf("Sum of first %d natural numbers is: %d\n", n, sum);
}

Output

$ gcc sum-of-n-natural-numbers-using-do-while.c 
$ ./a.out 
Enter the value of n    10
Sum of first 10 natural numbers is: 55