Calculate the Sum of Natural Numbers.c

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#include <stdio.h>
int
main ()
{
  int n, sum = 0;
  printf ("Enter number : ");
  scanf ("%d", &n);
  for (int i = 1; i <= n; i++)
    {
      sum += i;
    }
  printf ("Sum of natural numbers are : %d\n", sum);
  return 0;
}