int previousMillis=0;

void setup() {
  pinMode(13, INPUT); 
  pinMode(12, OUTPUT); 
  pinMode(11, OUTPUT); 
  pinMode(10, OUTPUT); 

}

void loop() {
 int val = digitalRead(13);  
  unsigned long currentMillis = millis();
   if (currentMillis - previousMillis >= 10000 && val == HIGH)
    { previousMillis = currentMillis;
     digitalWrite(10,HIGH);
    digitalWrite(12,LOW);
      digitalWrite(11,LOW);
      tone(21,400);
      noTone(20);
       noTone(19);
    }else if (currentMillis - previousMillis >= 5000 && val == HIGH)
    {
        previousMillis = currentMillis;
 digitalWrite(11,HIGH);
 digitalWrite(12,LOW);
  digitalWrite(10,LOW);
  tone(20,400);
  noTone(19);
   noTone(21);
    }else if (val == HIGH)
    {
        digitalWrite(12,HIGH);
         digitalWrite(11,LOW);
  digitalWrite(10,LOW);
  tone(19,400);
  noTone(20);
   noTone(21);
    }
}