#define led1 13
#define led2 12
#define led3 7
#define led4 4
#define led5 2
#define btn 8


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(btn, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int btnstart= digitalRead(btn);

  if(btnstart==HIGH){
    digitalWrite(led1, HIGH);
    Serial.print("HIGH");
    delay(100);
    digitalWrite(led1, LOW);
    Serial.print("LOW");
    delay(100);

    digitalWrite(led2, HIGH);
    Serial.print("HIGH");
    delay(100);
    digitalWrite(led2, LOW);
    Serial.print("LOW");
    delay(100);

    digitalWrite(led3, HIGH);
    Serial.print("HIGH");
    delay(100);
    digitalWrite(led3, LOW);
    Serial.print("LOW");
    delay(100);

    digitalWrite(led4, HIGH);
    Serial.print("HIGH");
    delay(100);
    digitalWrite(led4, LOW);
    Serial.print("LOW");
    delay(100);

    digitalWrite(led5, HIGH);
    Serial.print("HIGH");
    delay(100);
    digitalWrite(led5, LOW);
    Serial.print("LOW");
    delay(100);
  }
  else{
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    Serial.println("LOW");
  }


}