#include <avr/io.h>
  #include <util/delay.h>
  #include <stdio.h>
  
  #include "serial.h"
  #include "ethernet.h"
  #include "w5100.h"
  #include "socket.h"
  
  #define MAC_SIZE	6
  #define IPV4_SIZE	4
  
  int main(void)
  {
  init_printf();
  // Your code here !!
  return 0;
  }