int redstop = 4;
int yellowait =5;
int greengo =6;





void setup() {
  // put your setup code here, to run once:

pinMode (redstop, OUTPUT);
pinMode (yellowait, OUTPUT);
pinMode (greengo,OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite (redstop, LOW);
  delay (100);
digitalWrite (redstop,HIGH);
delay (2000);
digitalWrite (redstop  ,LOW);
delay (300);
digitalWrite (redstop, HIGH );
delay (300);
digitalWrite (redstop, LOW );
delay (300);
digitalWrite (redstop, HIGH );
delay (300);
digitalWrite (redstop, LOW );
delay (300);
digitalWrite (yellowait,LOW);
delay (100);
digitalWrite (greengo, LOW);
delay (100);


digitalWrite (redstop,LOW );
delay (100);
digitalWrite(yellowait, HIGH);
delay(2000);
digitalWrite(yellowait ,LOW);
delay(300);
digitalWrite(yellowait, HIGH );
delay(300);
digitalWrite(yellowait, LOW );
delay(300);
digitalWrite(yellowait, HIGH );
delay(300);
digitalWrite(yellowait, LOW );
delay(300);
digitalWrite(greengo, LOW);
delay(300);



digitalWrite (redstop,LOW);
delay (100);
digitalWrite (yellowait,LOW);
delay (100);
digitalWrite (greengo,HIGH);
delay(2000);
digitalWrite(greengo, LOW);
delay(300);
digitalWrite(greengo, HIGH);
delay(300);
digitalWrite(greengo ,LOW);
delay(300);
digitalWrite(greengo, HIGH );
delay(300);
digitalWrite(greengo, LOW );
delay(300);
digitalWrite(greengo, HIGH );
delay(300);
digitalWrite(greengo, LOW );
delay(300);



}