RGB LED Flasher

1const int red = 11;
2const int green =12;
3const int blue = 13;
4void  setup() {
5
6  pinMode(red, OUTPUT);
7  pinMode(green, OUTPUT);
8  pinMode(blue,  OUTPUT);
9}
10
11
12void loop() {
13  digitalWrite(red, HIGH);   
14  digitalWrite(green,  LOW);
15  digitalWrite(blue, LOW);
16  delay(1000); 
17   digitalWrite(red, LOW);   
18  digitalWrite(green, HIGH);
19  digitalWrite(blue, LOW);
20  delay(1000);
21   digitalWrite(red, LOW);   
22  digitalWrite(green, LOW);
23  digitalWrite(blue,  HIGH);
24     
25  delay(1000);                    
26}