void setup() {
  pinMode(0, OUTPUT);
   pinMode(1, OUTPUT);
    pinMode(2, OUTPUT);
     pinMode(3, OUTPUT);
      pinMode(4, OUTPUT);
       pinMode(5, OUTPUT);
        pinMode(6, OUTPUT);

}

void loop() 
{
  digitalWrite(0, LOW);
   digitalWrite(1, LOW);
    digitalWrite(2, LOW);
     digitalWrite(3, LOW);
      digitalWrite(4, LOW);
       digitalWrite(5, LOW);
        digitalWrite(6, HIGH);
}