void setup() {
  // put your setup code here, to run once:
  volatile char *dirf,*dirk,*dirb;
  dirf=0x30;
  *dirf=0xff;
  dirk=0x107;
  *dirk=0xff;
  dirb=0x24;
  *dirb=0x00;
}

void loop() {
  // put your main code here, to run repeatedly:
  volatile char *outf,*outk,*inb,readInput,count=0;
  outf=0x31;
  outk=0x108;
  inb=0x23;
  while(1){
    readInput=*inb;
    if(readInput){
      count++;
      for(volatile long j=0;j<50000;j++);
    }
    if(count==1){
      *outk=0xff;
      *outf=0x06;
      *outk=0x0e;
    }
    else if(count==2){
      *outk=0xff;
      *outf=0x06;
      *outk=0x0e;
      *outk=0xff;
      *outf=0x5b;
      *outk=0x0d;
    }
    else if(count==3){
      *outk=0xff;
      *outf=0x06;
      *outk=0x0e;
      *outk=0xff;
      *outf=0x5b;
      *outk=0x0d;
      *outk=0xff;
      *outf=0x4f;
      *outk=0x0b;
    }
  }

  // *outk=0xff;
  // *outf=0x06;
  // *outk=0x0e;
  // *outk=0xff;
  // *outf=0x5b;
  // *outk=0x0d;
  // *outk=0xff;
  // *outf=0x4f;
  // *outk=0x0b;
  // *outk=0xff;
  // *outf=0x66;
  // *outk=0x07;
}