text: /*Exercise 3 - Repetition
  
  Write a C program to calculate the sum of the numbers from 1 to n.
  Where n is a keyboard input.
  
  e.g.
  
  n -> 100
  sum = 1+2+3+....+ 99+100 = 5050
  
  n -> 1-
  sum = 1+2+3+...+10 = 55 */
  
  #include <stdio.h>
  int main() {
  
    int i, n, sum = 0;
  
    printf("Enter the integer = ");
    scanf("%d", &n);
  
    for(i=1; i<=n; i++)
    {
      sum += i;
    }
  
    printf("Sum = %d", sum);
    return 0;
  }
  
  