#define F_CPU 1000000UL
#include <avr/io.h>
#include <util/delay.h>

int main(void){
	while(1){
		for (int i = 1; i<=260; i++) {
			PORTD = 0b00000000;
			_delay_ms(0.9);
			PORTD = 0b10000000;
			_delay_ms(0.9);
		}
		for (int i = 1; i<=375; i++) {
			PORTD = 0b00000000;
			_delay_ms(0.66);
			PORTD = 0b10000000;
			_delay_ms(0.66);
		}
	}
return 0;
}