#define mul_width 10
#define mul_height 10
static unsigned char mul_bits[] = {
   0x03, 0x03, 0x87, 0x03, 0xce, 0x01, 0xfc, 0x00, 0x78, 0x00, 0x78, 0x00,
   0xfc, 0x00, 0xce, 0x01, 0x87, 0x03, 0x03, 0x03};