#include <avr/io.h>          
  
  int main(void) 
  {
    unsigned char mylist[]= "012345abcd";
    unsigned char z ;       
    ddrb = 0xff;          
    for( z = 0; z < 10; z++)
      portb = mylist[z] ;
  
    while(1);    
    return 0;
  }