#define f_cpu   8000000ul      
  #include "avr/io.h"
  #include "util/delay.h"
  
  int main ()
  {
    ddra = 0x00;
    ddrb = 0xff;
    while (1)
    {
      if( (pina&0x80) == 0)
      {
        portb = 0x06;
        _delay_ms (100);
        portb = 0x0c;
        _delay_ms (100);
        portb = 0x09;
        _delay_ms (100);
        portb = 0x03;
        _delay_ms (100);
      }
      else
      {
        portb = 0x06;
        _delay_ms (100);
        portb = 0x03;
        _delay_ms (100);
        portb = 0x09;
        _delay_ms (100);
        portb = 0x0c;
        _delay_ms (100);
      }
    }
  }