void setup() {
  // put your setup code here, to run once:
  volatile char *dirf,*dirk,x;
  volatile char *outf,*ink;
  dirf = 0x30;dirk = 0x107;
  outf = 0x31; ink = 0x106;
  *dirf = 0x01;*dirf = 0x00;
  while(1){
    x = *ink;
    if((x & 0x01) == 0x01){
      *outf = 0x01;
    }
    else{
      *outf = 0x00;
    }
    
  }
  
}

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

}