void setup() {
  // put your setup code here, to run once:
pinMode(3, OUTPUT);
pinMode(8, OUTPUT);

}

void loop() {

  //analogWrite gives values between 0-255
  //analogRead gives values between 0-1023
  analogWrite(8, analogRead(A2)/4);
  analogWrite(3, 255 - analogRead(A2)/4);
}