int buttons[] = {A0,A1,A2,A3,A4,A5,A6,A7};

void setup() {
  Serial.begin(115200);

  for(int i = 0; i < 8; i++)
  {
    pinMode(buttons[i], INPUT_PULLUP);
  }

}

void loop() {
  for(int i = 0; i < 8; i++)
  {
    if(digitalRead(buttons[i])== LOW)
    {
      Serial.print("PIN ");
      Serial.print(i+1);
      Serial.println(" is LOW.");
    }
    else{
            Serial.print("PIN ");
      Serial.print(i+1);
      Serial.println(" is HIGH.");
    }
    
  }
  delay(2000);
}