int blueled=11;
int redled=12;
int greenled=13;
int ontime=1000;
int offtime=2000;

void setup(){
  pinMode(blueled,OUTPUT);
  pinMode(redled,OUTPUT);
  pinMode(greenled,OUTPUT);
  Serial.begin(9600);
}
void loop(){
  for(int i=0;i<5;i++){
  Serial.println(i);
  Serial.println("Red led is blinking");
  digitalWrite(redled, HIGH);
  delay(ontime);
  digitalWrite(redled, LOW);
  delay(offtime);
  }
  for(int j=0;j<2;j++){
  Serial.println(j);
  Serial.println("Green led is blinking");
  digitalWrite(greenled, HIGH);
  delay(ontime);
  digitalWrite(greenled, LOW);
  delay(offtime);
  }
  Serial.println("Blue led is blinking");
  digitalWrite(blueled, HIGH);
  delay(ontime);
  digitalWrite(blueled, LOW);
  delay(offtime);
}