//print out the state of the button:
Serial.println(digitalRead(8));
Serial.println(digitalRead(9));
Serial.println(digitalRead(10));
Serial.println(digitalRead(11));
//print out the state of the button:
Serial.println(digitalRead(8));
Serial.println(digitalRead(9));
Serial.println(digitalRead(10));
Serial.println(digitalRead(11));