//#define sw 0
//#define led 0
void setup() {
  // put your setup code here, to run once:
DDRA|=(1<<PA0);
DDRF&=~(1<<PF0);
DDRF|=(1<<PF1);
PORTF|=(1<<PF0);//pull up resistor
}
void loop(){
while(1){
  if(PINF &(1<<PF0)){
    PORTA|=(1<<PA0);
    PORTF|=(1<<PF1);
    //delay(500);
  }
  else{
    PORTA&=~(1<<PA0);
    PORTF&=~(1<<PF1);
    //delay(500);
  }
}
}