#include <iostream.h>

// file: blastoff.cc
// demonstrate use of while loop
// emulate countdown

int main()
{
   int countdown;

   countdown = 10;

   while ( countdown > 0)
   {
      cout << countdown << endl;
      countdown -= 1;
   }

   cout << "BLASTOFF !!!" << endl;

   return 0;
}

<blastoff
>10
>9
>8
>7
>6
>5
>4
>3
>2
>1
>BLASTOFF !!!