#include<stdio.h>

void main()
{
  int array[3];  // sets aside enough memory for 3 ints
  int sum = 0;
  int i = 0;


  array[0] = 1;
  array[1] = 2;
  array[2] = 3;
  
  i=0;
  do {
    sum = sum + array[i];

    i++;
  } while (i < 3);

  printf("Sum: %d\n", sum);
}