Arduino UNO with LED RGB V2 Keyes

1void setup()
2{
3  //all pins are outputs and we are using 2 to 13
4  for (int x =2;x<13;x++)
5  {
6    pinMode(x,OUTPUT);
7    digitalWrite(x,HIGH);
8  }
9}
10 
11void loop()
12{
13   blue();
14   cycle(); 
15   green();
16   cycle();
17   red();
18   cycle();
19}
20 
21void blue()
22{
23  digitalWrite(12,LOW);
24}
25  
26void green()
27{
28  digitalWrite(11,LOW);
29}
30 
31void red()
32{
33  digitalWrite(10,LOW);
34}
35 
36 
37void cycle()
38{
39  for(int x=2;x<10;x++)
40  {
41    digitalWrite(x,LOW);
42    delay(500);
43    digitalWrite(x,HIGH);
44  }
45  digitalWrite(10,HIGH);
46  digitalWrite(11,HIGH);
47  digitalWrite(12,HIGH);
48}
49