#include <stdio.h>
short _stdcall Inp32(short PortAddress);
void _stdcall Out32(short PortAddress, short data);
void main()
{
int num;
num = inp32(ox300);
if(num&1==1)
 out32(ox301, 0);
if(num&1==0)
 out32(0x301,255);
}