#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>
ISR(INT0_vect){
	TCCR0B|=(1<<CS00)|(1<<CS02);
	PORTB &=(~(1<<PB3));
	PORTB|=(1<<PB2);
}
ISR(PCINT0_vect){
	TCCR0B|=(1<<CS00)|(1<<CS02);
	PORTB &=(~(1<<PB2));
	PORTB|=(1<<PB3);
}
ISR(TIM0_OVF_vect){
	TCCR0B&=(~((1<<CS00)|(1<<CS02)));
    PORTB &=(~(1<<PB2));
	PORTB &=(~(1<<PB3));

}
int main(void)
{
	DDRB|=(1<<PB2)|(1<<PB3);
	TIMSK0|=(1<<TOIE0);
	PCMSK|=(1<<PCINT0);
	MCUCR=0b00110011;
	GIMSK=0b01100000;
	set_sleep_mode(SLEEP_MODE_IDLE);
	sei();

    while(1)
    {
sleep_enable(); // разрешаем сон
               sleep_cpu(); // спать!
    }
}