#include<stdio.h>
#include<conio.h>

void main()
{
 int i=102, j, k;
 int sum = 0, digitsum;
 int prime;
 clrscr();
 do
 {
  j = i;
  digitsum = 0;
  while (j > 0)
  {
   digitsum = digitsum + (j % 10);
   j = j / 10;
  }
  prime = 1;
  for (k=2; k<digitsum/2; k++)
  {
   if (digitsum % k == 0)
   {
    prime = 0;
    break;
   }
  }
  if (prime == 1)
  {
   sum = sum + i;
  }
  i++;
 } while (i < 200);
 printf("Sum is %d", sum);
 getch();
}