int DDRA = 0;
int DDRB = 0;

int PORTA = 0;
int PORTB = 0;
int PINA = 0;
int PINB = 0;

int PRR = 0;
int TCCR0B = 0;
int TCCR0A = 0;
int TIMSK0 = 0;
int TIFR0 = 0;
int OCR0A = 0;
int OCR0B = 0;
int TCNT0 = 0;
int TCCR1B = 0;
int TCCR1A = 0;
int TIMSK1 = 0;
int TIFR1 = 0;
int OCR1A = 0;
int OCR1B = 0;
int TCNT1 = 0;
int TCNT1H = 0;
int TCNT1L = 0;