#define max_width 10
#define max_height 10
static unsigned char max_bits[] = {
   0xff, 0x03, 0xff, 0x03, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
   0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0xff, 0x03 };