#define feder_width 18
#define feder_height 16
static char feder_bits[] = {
 0xff,0xff,0xff,0x79,0x00,0xfc,0x84,0x01,0xfc,0x04,0x02,0xfc,0x08,0x04,0xfc,
 0x10,0x08,0xfc,0x20,0x10,0xfc,0x20,0x22,0xfc,0x40,0x4c,0xfc,0x80,0x98,0xfc,
 0x00,0xb1,0xfc,0x00,0xc2,0xfc,0x00,0xfc,0xfd,0x00,0x00,0xff,0x00,0x00,0xfe,
 0x01,0x00,0xfe};