int s[]={15, 13, 4, 5, 18, 21, 19, 22};
 void setup() {

 pinMode(s[0],OUTPUT);
 pinMode(s[1],OUTPUT);
 pinMode(s[2],OUTPUT);
 pinMode(s[3],OUTPUT);
 pinMode(s[6],OUTPUT);

}

void loop() {
digitalWrite(s[0],HIGH);
digitalWrite(s[1],HIGH);
digitalWrite(s[2],HIGH);
digitalWrite(s[3],HIGH);

digitalWrite(s[6],HIGH);

  delay(10); // this speeds up the simulation
}