int gear1 = 0;
int gear2 = 0;
int gear3 = 0;
int gear4 = 0;
int gear5 = 0;
int gear6 = 0;
int gear7 = 0;
int gearR = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(0, INPUT);
  pinMode(1, INPUT);
  pinMode(2, INPUT);
  pinMode(3, INPUT);

  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);
  pinMode(7, INPUT);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  gear1 = digitalRead(7);
  gear2 = digitalRead(3);
  gear3 = digitalRead(6);
  gear4 = digitalRead(2);
  gear5 = digitalRead(5);
  gear6 = digitalRead(9);
  gear7 = digitalRead(4);
  gearR = digitalRead(8);
  if(gear1 == HIGH) {
    Serial.println(1);
  }

  else if(gear2 == HIGH) {
    Serial.println(2);
  }

  else if(gear3 == HIGH) {
    Serial.println(3);
  }

  else if(gear4 == HIGH) {
    Serial.println(4);
  }

  else if(gear5 == HIGH) {
    Serial.println(5);
  }

  else if(gear6 == HIGH) {
    Serial.println(6);
  }

  else if(gear7 == HIGH) {
    Serial.println(7);
  }

  else if(gearR == HIGH) {
    Serial.println("R");
  } else {
    Serial.println("N");
  }

  delay(100);
}