1  typedef struct {
       2    int a;
       3  } VCR;
       4  
       5  typedef struct {
       6    VCR vcr[8];
       7  } VCRC;
       8  
       9  typedef struct {
      10    char vcr;
      11  } OWN;
      12  
      13  OWN Own[16];
      14  
      15  f (x, own)
      16    VCRC *x;
      17    OWN *own;
      18  {
      19    x[own->vcr / 8].vcr[own->vcr % 8].a--;
      20    x[own->vcr / 8].vcr[own->vcr % 8].a = x[own->vcr / 8].vcr[own->vcr % 8].a;
      21  }