void setup() {
  pinMode(26, OUTPUT);
  pinMode(33, OUTPUT);
  pinMode(35, OUTPUT);
  pinMode(34, OUTPUT);
  pinMode(18, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(21, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
}

void loop() {
  int S1=digitalRead(27);
  int S2=digitalRead(4);
  int S3=digitalRead(5);
if((S1==0) && (S2==0) && (S3==1)){
  digitalWrite(1, HIGH);
   digitalWrite(2, HIGH);
}
else if((S1==0) && (S2==1) && (S3==0)){
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
}
else if((S1==0) && (S2==1) && (S3==0)){
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);}
  else{
    digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);}

  if((S1==0) && (S2==1) && (S3==1)){
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);}

  else if((S1==1)&&(S2==0)&&(S3==0)){
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);}
  else{
    digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);}

  if((S1==1)&&(S2==0)&&(S3=1)){
  digitalWrite(1, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(7, HIGH);}
  else if((S1==1)&&(S2==1)&&(S3=0)){
  digitalWrite(2, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(8, HIGH);}
  else{
    digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);}

   if((S1==1)&&(S2==1)&&(S3=1)){
  digitalWrite(1, HIGH);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  delay(2000);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(2000);
  digitalWrite(1, HIGH);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  }
  else if{
    digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  }
  else{
    digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);}
}