#include <reg51.h>
void main (void)
  {
    P0= 0x35 & 0x0F;  	
    P1= 0x04 | 0x68; 	
    P2= 0x54 ^ 0x78;  	
    P0= ~0x55;        	
    P1= 0x9A >> 3;    	
    P2= 0x77 >> 4;    	
    P0= 0x6 << 4;    	
  }