#ifndef F_CPU
#define F_CPU 1000000UL
#endif

#include <avr/io.h>
#include <util/delay.h>


int main(void)
{
	
	DDRC = 0b11111111;
	
	while (1)
	{
		PORTC = 0b11111111;
		
		_delay_ms(500);
        
		PORTC = 0b11111110;
		
		_delay_ms(500);
		
		PORTC = 0b11111101;
		
		_delay_ms(500);
		
		PORTC = 0b11111011;
		
		_delay_ms(500);
		
		PORTC = 0b11110111;
		
		_delay_ms(500);
		
		PORTC = 0b11101111;
		
		_delay_ms(500);
		
		PORTC = 0b11011111;
		
		_delay_ms(500);
		
		PORTC = 0b10111111;
		
		_delay_ms(500);
		
		PORTC = 0b01111111;
		
		_delay_ms(500);
		
		PORTC = 0b00000000;
		
		_delay_ms(500);
	}
	return 0;
}