void setup() {
  // put your setup code here, to run once:
   pinMode(A0, OUTPUT);
   pinMode(A1, OUTPUT);
 

}

void loop() {
  // put your main code here, to run repeatedly:
 // analogRead(A0);
 for(int i=1000; i>=0; i=i-10) {
  analogWrite(A1, abs(i-1000));
  analogWrite(A0, i);
  delay(100); 
 }

}