#define Red_PIN 7
#define Yellow_PIN 6
#define Green_PIN 5


void setup() {
  pinMode(7,OUTPUT);
  pinMode(6,OUTPUT);
  pinMode(5,OUTPUT);

}
void loop() {
  digitalWrite(7, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(5, LOW);
  delay(10000);

  digitalWrite(7, LOW);
  digitalWrite(6 , HIGH);
  digitalWrite(5, LOW);
  delay(2000);

  digitalWrite(7, LOW);
  digitalWrite(6, LOW);
  digitalWrite(5, HIGH);
  delay(30000);

  digitalWrite(7,LOW);
  digitalWrite(6, HIGH);
  digitalWrite(5, LOW);
  delay(2000);
}