void setup() {
#define red 7
#define yellow 6
#define green 5
pinMode(red, OUTPUT);
pinMode(yellow, OUTPUT);
pinMode(green, OUTPUT);
}

void loop() {

digitalWrite(red, HIGH);
delay (1000);
digitalWrite(red, LOW);
digitalWrite(6, HIGH);
delay (200);
digitalWrite(6, LOW);
digitalWrite(5, HIGH);
delay (1000);
digitalWrite(5, LOW);
delay(200);
digitalWrite(6, HIGH);
delay (200);
digitalWrite(6, LOW);

}