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 n, i, sum;
    printf("Enter a value for n: ");
    scanf("%i", &n);
  
    i = 0;
    sum = 0;
    while(i <= n){
      sum = sum + i;
      i++;
    }
    printf("The sum from 1 to %i is : %i", n, sum);
    return 0;
  }
  
  