int i;
int i2;
void setup()
{
  Serial.begin(9600);
  pinMode(21, INPUT_PULLUP);
  pinMode(19, INPUT_PULLUP);
  pinMode(22, OUTPUT);
  pinMode(23, OUTPUT);
}

void loop()
{
  i = digitalRead(21);
  if (i == 0) {
    digitalWrite(22, HIGH);
    digitalWrite(23, LOW);
  }
  i2 = digitalRead(19);
  if (i2 == 0) {
	  digitalWrite(22, LOW);
    digitalWrite(23, HIGH);
}

Serial.println(String(i)+"and"+String(i2));




}