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 num, sum=0,i;
    
    printf("From 1 to which number, you need to get : ");
    scanf("%d" ,&num);
    
    for(i=1;<=num;i++)
    {
      sum += i;
    } 
    
    printf("sum of the numbers from 1 to %d is = %d\n" ,num, sum);
    
    
    return 0;
  }
  
  