int Button = 0;

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

void loop()
{
  digitalWrite(1, HIGH);
  Button = digitalRead(6);
  if (Button == HIGH) {
    digitalWrite(2, HIGH);
  }
  Button = digitalRead(6);
  if (Button == HIGH) {
    digitalWrite(3, HIGH);
  }
  Button = digitalRead(6);
  if (Button == HIGH) {
    digitalWrite(4, HIGH);
  }
  Button = digitalRead(6);
  if (Button == HIGH) {
    digitalWrite(5, HIGH);
  }
  delay(10); // Delay a little bit to improve simulation performance
}