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int redPin = 6;
int yeloyPin = 8;
int greenPin = 7;
void setup() {
  // put your setup code here, to run once:
  pinMode(redPin,OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(redPin,HIGH);
  delay(5000);
  for(int i = 0;i<=3;i+=1){
      for(int i = 0;i<=255;i+=20){
      analogWrite(redPin,i);
      delay(50);
    }
      for(int i = 255;i>=0;i-=20){
      analogWrite(redPin,i);
      delay(50);
    }
  }
  digitalWrite(redPin,LOW);  
  delay(50);
  digitalWrite(yeloyPin,HIGH);
  delay(1000);
  for(int i = 0;i<=3;i+=1){
      for(int i = 0;i<=255;i+=20){
      analogWrite(yeloyPin,i);
      delay(50);
    }
      for(int i = 255;i>=0;i-=20){
      analogWrite(yeloyPin,i);
      delay(50);
    }
  }
  digitalWrite(yeloyPin,LOW);
  delay(50);
  digitalWrite(greenPin,HIGH);
  delay(10000);
  for(int i = 0;i<=3;i+=1){
      for(int i = 0;i<=255;i+=20){
      analogWrite(greenPin,i);
      delay(50);
    }
      for(int i = 255;i>=0;i-=20){
      analogWrite(greenPin,i);
      delay(50);
    }
  }
  digitalWrite(greenPin,LOW);
  delay(50);
  
  
  
}