include "inc/cmdsys.plh"
include "inc/conio.plh"

byte i, j

conio:home()
for i = 1 to 13
 for j = 1 to i
   conio:gotoxy(j+4,  i);    putc('*')
   conio:gotoxy(14-j, i);    putc('*')
   conio:gotoxy(j+4,  18-i); putc('*')
   conio:gotoxy(14-j, 18-i); putc('*')
 next
next
conio:gotoxy(0,20)