/*-------------------------------------------------------------------*/
/* sumflat.c                                                         */
/*-------------------------------------------------------------------*/

#include <stdio.h>

static int i;
static int iFirst;
static int iSecond;
static int iSum = 0;

int main(int argc, char *argv[])

/* Read two integers from stdin, and write to stdout the sum of all 
   integers between the two. */

{
   printf("Enter an integer:  ");
   scanf("%d", &iFirst);

   printf("Enter another integer that is greater than the first:  ");
   scanf("%d", &iSecond);

   i = iFirst;
loop1:
   if (i > iSecond) goto loopend1;
   iSum += i;
   ++i;
   goto loop1;
loopend1:

   printf("The sum of all integers between the two is %d.\n", iSum);
   return 0;
}