void setup() {
  // put your setup code here, to run once:
  volatile char *dir;
  dir = 0x31;
  *dir = 0xFF;
  dir = 0x107;
  *dir = 0xFF;

}

void loop() {
  // put your main code here, to run repeatedly:
  volatile char *out;
  out = 0x31;
  *out = 0x5B;
  out = 0x108;
  *out = 0x6D;

}