void setup() {
  
}

void loop() {
  pinMode(7, OUTPUT);
pinMode(6, OUTPUT);

delay(500);
 digitalWrite(7, HIGH);
 digitalWrite(6, HIGH);
delay(500);
 digitalWrite(7, LOW);
digitalWrite(6, LOW);
delay(500);
digitalWrite(7, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);
digitalWrite(7, LOW);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
digitalWrite(12, LOW);
delay(500);


}