void setup() {
  volatile char *dirf,*dirk,*outf,*ink, x;
  dirf=(char*)0x30; dirk=(char*)0x107;
  outf=(char*)0x31; ink=(char*)0x106;
  *dirf=0x01; *dirk=0x00;
  while(1){
    x=*ink;
    if((x & 0x01)==0x01){
    *outf=0x01;
    }
    else{
      *outf=0x00;
    }
  }
}


void loop() {
  // put your main code here, to run repeatedly:
}