void setup()
{
  // put your setup code here, to run once:
  Serial.begin(115200);
  // traffic light 1
  pinMode(23, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(5, OUTPUT);
  //Traffic light 2
  pinMode(12, OUTPUT);
  pinMode(34, OUTPUT);
  pinMode(35, OUTPUT);
}


void loop()
{
  digitalWrite(23,HIGH);
  digitalWrite(12,HIGH);
  delay(1000);


  digitalWrite(23,LOW);
  digitalWrite(12, LOW);
  delay(1000);
 
   digitalWrite(22, HIGH);
  digitalWrite(35, HIGH);
  delay(1000);
 
  digitalWrite(22, LOW);
  digitalWrite(35, LOW);
  delay(1000);


  digitalWrite(34, HIGH);
  digitalWrite(5, HIGH);
  delay(1000);


  digitalWrite(34, LOW);
  digitalWrite(5, LOW);
  delay(1000);


 
}