#include<assert.h>
#include<stdio.h>

int main(int argc, char **argv)
{
   int data[5] = {0, 0, 0, 0, 0};
   int *p = data;

   /* CPP = 67 80 80 10
      67 = 4 * 4 * 4 + 3
      80 = 4 * 4 * 5
   */

   *p += 4;             /* BF:++++ */
   while( *p )          /* BF:[ */
   {
      --*p;             /* BF:- */
      p++;              /* BF:> */
      *p += 2;          /* BF:++ */
      p++;              /* BF:> */
      *p += 4;          /* BF:++++ */
      while( *p )       /* BF:[ */
      {
         --*p;          /* BF:- */
         p++;           /* BF:> */
         *p += 4;       /* BF:++++ */
         p++;           /* BF:> */
         *p += 5;       /* BF:+++++ */
         p -= 2;        /* BF:<< */
         assert(p == &data[2]);
      }                 /* BF:] */
      p -= 2;           /* BF:<< */
      assert(p == &data[0]);
   }                    /* BF:] */
   assert(p == &data[0]);
   assert(data[0] == 0);
   assert(data[1] == 8);
   assert(data[2] == 0);
   assert(data[3] == 64);
   assert(data[4] == 80);

   p += 3;              /* BF:>>> */
   *p += 3;             /* BF:+++ */
   assert(*p == 'C');
   putchar(*p);         /* BF:. */

   p++;                 /* BF:> */
   assert(*p == 'P');
   putchar(*p);         /* BF:. */
   putchar(*p);         /* BF:. */

   p -= 3;              /* BF:<<< */
   *p += 2;             /* BF:++ */
   assert(*p == '\n');
   putchar(*p);         /* BF:. */
   return 0;
}