#define four_width 16
#define four_height 16
static char four_bits[] = {
   0x00, 0x01, 0x03, 0xc1, 0x03, 0xc1, 0x07, 0xc1, 0x05, 0xc1, 0x0d, 0xc1,
   0x0d, 0xc1, 0x19, 0xc1, 0x1f, 0xf1, 0x1f, 0xf1, 0x01, 0xc1, 0x01, 0xc1,
   0x01, 0xc1, 0x01, 0xc1, 0x00, 0x01, 0xff, 0xff};