int blueLed=2;
int redLed=3;

void setup() {
  // put your setup code here, to run once:
  pinMode(redLed, OUTPUT);
  pinMode(blueLed, OUTPUT);
  //digitalWrite(redLed, HIGH);
  
}


void toggle(int led){
  digitalWrite(led, !digitalRead(led));
}
void fadeIn(int led){
  for(int j=0;j<256;j++){
    analogWrite(led,j);
    delay(2);
  }
}
void fadeOut(int led){
  for(int j=256;j>0;j--){
    analogWrite(led,j);
    delay(2);
  }
}


void loop() {
  // put your main code here, to run repeatedly:
  toggle(blueLed); 
  toggle(redLed);
  delay(500);
  
}