void setup() {
pinMode(18, OUTPUT);
 pinMode(16, OUTPUT);
 pinMode(17, OUTPUT);
 pinMode(15, OUTPUT);
 pinMode(32, OUTPUT);
 pinMode(33, OUTPUT);
 pinMode(25, OUTPUT);
 pinMode(26, OUTPUT);
}

void loop() {
digitalWrite(18, HIGH);
 delay(5000);
digitalWrite(18, LOW);
 delay(5000);
  digitalWrite(16, HIGH);
 delay(5000);
 digitalWrite(16, LOW);
  delay(5000);
 digitalWrite(17, HIGH);
 delay(5000);
digitalWrite(17, LOW);
delay(5000);
  digitalWrite(15, HIGH);
 delay(5000);
digitalWrite(15, LOW);
delay(5000);
 digitalWrite(32, HIGH);
 delay(5000);
 digitalWrite(32, LOW);
 delay(5000);
  digitalWrite(33, HIGH);
 delay(5000);
  digitalWrite(33, LOW);
  delay(5000);
digitalWrite(15, HIGH);
 delay(5000);
digitalWrite(15, LOW);
}