#include<graphics.h>
#include<math.h>
#include<conio.h>
#include<stdlib.h>
#include<dos.h>
#include<stdio.h>
#include<bios.h>
#define Key_Left 0x4b00
#define Key_Right 0x4d00
#define Key_Down 0x5000
#define Key_Up 0x4800
#define s 8051
#define D down
#define U up
void *A_lift,*A_blank,*B_lift,*B_blank;
void graph();
/*void open&close_door();
void stay();
void ();
void fun5();
void fun6(); */
void main()
{
  graph();
  int a,b,i,j;
  printf("input where A&B stay:");
  scanf("%d%d",&a,&b);
  stay(a,b);
  for(i=0;;i++)
  {
     key=bioskey(0);
     switch(key)
     {
       case ENTER;

       case l:
	      a=4;
	      staying(a,b);
	      break;
       case k:
       case j:

       case m:
       case n:
       case b:

       case u:
       case i:
       case o:
       case p:

       case a:
       case s:
       case d:

       case z:
       case x:
       case c:

       case r:
       case e:
       case w:

       case ESC:break;

   }
   getch();
   closegraph();
  }
}