void setup() {
  // put your setup code here, to run once:
  pinMode(8, INPUT);
   pinMode(9, INPUT);
    pinMode(10, INPUT);
     pinMode(2, OUTPUT);
      pinMode(3, OUTPUT);
       pinMode(4, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
int red=digitalRead(8);
int blue=digitalRead(9);
int green=digitalRead(10);

if(red==HIGH){
digitalWrite(2, HIGH);
}
else{
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
}
if(blue==HIGH){
digitalWrite(3, HIGH);
}
else{
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
}
if(green==HIGH){
digitalWrite(4, HIGH);
}
else{
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
}
}