void setup() {
  pinMode(2,INPUT);
  pinMode(22,OUTPUT);
  Serial.begin(115200);
  
}

void loop() {
  int  x = digitalRead(2);
  if(x == LOW)
  {
    digitalWrite(22, HIGH);
    Serial.println("abc");
  }
  else
  {
    digitalWrite(22, LOW);
    Serial.println("xyz");
  }
}