Traffic light

void setup() {
  // put your setup code here, to run once:
pinMode(2,INPUT);
pinMode(8,OUTPUT);
pinMode(9,OUTPUT);
pinMode(10,OUTPUT);
pinMode(11,OUTPUT);
pinMode(12,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(8,LOW);
digitalWrite(9,LOW);
digitalWrite(10,LOW);
digitalWrite(11,LOW);
digitalWrite(12,LOW);
digitalWrite(10,HIGH);
digitalWrite(9,HIGH);
if (digitalRead(2) ==HIGH)
{
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);
    digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);  
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(500);
  digitalWrite(10,LOW);
  digitalWrite(11,HIGH);
  delay(1500);
  digitalWrite(11,LOW);
  digitalWrite(12,HIGH);
  delay(1500);
  digitalWrite(9,LOW);
  digitalWrite(8,HIGH);
  delay(10000);
  digitalWrite(8,LOW);
  digitalWrite(9,HIGH);
  delay(1500);
  digitalWrite(12,LOW);
  digitalWrite(10,HIGH);
  
}
}