//
// ***** The Mystery Program *****
//

#include <iostream.h>

int mystery(int a, int j)
{
   if (j == 1)
      return a + 1;
   else
      return a * (j / 2) + mystery(a + 1, j - 1);
}

void main()
{
   cout << "It's a mystery...  a = 3 plus j = 5 equals: "
        << mystery(3, 5)
        << endl;
}