#define led1 13
#define led2 12
#define led3 11
#define button 7
int status = 0;
void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(button, INPUT);

  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
}

void loop() {
  if(digitalRead(button) == HIGH){
    status ++;
    delay(1000);

  if (status ==1){
    digitalWrite(led1, HIGH);
  }
  if (status ==2){
    digitalWrite(led2, HIGH);
  }
  if (status ==3){
    digitalWrite(led3, HIGH);
  }
  else if(status ==4){
    status = 0;
  }
  else{
    digitalWrite(led1, LOW);
    digitalWrite(led1, LOW);
    digitalWrite(led1, LOW);
  }
  }
}