int ledpg = 12;
int ledpt = 11;
int ledpr = 10;
int stat = 0;
int butpin = 9;

void setup() {
  pinMode(butpin, INPUT_PULLUP);
  pinMode(ledpg, OUTPUT);
  pinMode(ledpt, OUTPUT);
  pinMode(ledpr, OUTPUT);
  digitalWrite(ledpg, HIGH);
}

void loop() {
  bool butstat = digitalRead(butpin);
  delay(100);

  if (butstat == 0) {
    delay(1000);
    digitalWrite(ledpg, LOW);
    digitalWrite(ledpt, HIGH);
    delay(2000);
    digitalWrite(ledpt, LOW);
    digitalWrite(ledpr, HIGH);
    delay(5000);
    digitalWrite(ledpt, HIGH);
    delay(2000);
    digitalWrite(ledpt, LOW);
    digitalWrite(ledpr, LOW);
    digitalWrite(ledpg, HIGH);
  }
}