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=0;
  
    printf("Enter final number in sequence : ");
    scanf("%d", &n);
  
    for (i = 0; i <= n; i++)
      {
        sum = sum + i;
      }
  
    printf("Sum of number from 1 to %d is %d", n, sum);
    
    return 0;
  }
  
  