void setup() 
{
pinMode(16)OUTPUT);
pinMode(17)OUTPUT);
pinMode(18)OUTPUT);
pinMode(19)OUTPUT);
pinMode(21)OUTPUT);
pinMode(26)OUTPUT;
pinMode(35)INPUT);
}

void loop() 
{
  digitalRead(35)==HIGH)
  {
    digitalWrite(16,HIGH)
    digitalWrite(17,HIGH)
    digitalWrite(18,HIGH)
    delay(5000)
  
    digitalWrite(19,HIGH)
    digitalWrite(21,HIGH)
    delay(5000)
  
    digitalWrite(26,HIGH)
    delay(5000)
  }
}