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,i;
    int sum=0;
  
    printf("Enter number : ");
    scanf("%d",&num);
  
  for(i=1;i!=num;i++){
    sum=i+sum;
  }
    sum=sum+num;
    printf("The sum of numbers is %d ", sum);
    return 0;
  }
  
  