1  extern void exit (int);
       2  
       3  int a, b, c, d, e, f[3]; 
       4  
       5  int main() 
       6  {
       7    while (d)
       8      while (1)
       9        ;
      10    int g = 0, h, i = 0;
      11    for (; g < 21; g += 9) 
      12      {
      13        int j = 1;
      14        for (h = 0; h < 3; h++)
      15  	f[h] = 1;
      16        for (; j < 10; j++) {
      17  	d = i && (b ? 0 : c); 
      18  	i = 1;
      19  	if (g)
      20  	  a = e;
      21        }
      22    }
      23    exit (0);
      24  }
      25