int R = 5;
int G = 6;
int B = 7;
const  int IN_PIN_A = 4;
const int IN_PIN_B = 3;
const int IN_PIN_C = 2;
const int IN_PIN_D = 9;
void setup() {
  // put your setup code here, to run once:
  pinMode(IN_PIN_A, INPUT);
  pinMode(IN_PIN_B, INPUT);
  pinMode(IN_PIN_C, INPUT);
  pinMode(IN_PIN_D, INPUT);
  pinMode(R, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(B, OUTPUT);
  digitalWrite(R, LOW);
  digitalWrite(G, LOW);
  digitalWrite(B, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
  bool val1 = digitalRead(IN_PIN_A) == HIGH;
  bool val2 = digitalRead(IN_PIN_B) == HIGH;
  bool val3 = digitalRead(IN_PIN_C) == HIGH;
  bool val4 = digitalRead(IN_PIN_D) == HIGH;

  if (val1) {
    digitalWrite(R, HIGH);
  }

  if (val2) {
    digitalWrite(G, HIGH);
  }

  if (val3) {
    digitalWrite(B, HIGH);
  }

  if (val4) {
    digitalWrite(R, LOW);
    digitalWrite(G, LOW);
    digitalWrite(B, LOW);
  }
}