const int LB = 2;  
const int RB = 15;
const int t1 = 33;    
const int t2 = 32; 
const int b1 = 21; 
const int b2 = 19; 

int LBut = 0 ;
int RBut = 0;
int count=0;
int newcount;

void setup() {
  Serial.begin(9600);
  pinMode(t1, OUTPUT);
  pinMode(t2, OUTPUT);
  pinMode(b1, OUTPUT);
  pinMode(b2, OUTPUT);
  pinMode(LB, INPUT);
  pinMode(RB, INPUT);

  digitalWrite(t1, LOW); 
  digitalWrite(t2, LOW);
  digitalWrite(b1, LOW);
  digitalWrite(b2, LOW);
 Serial.println("stop");
}

void loop() {
  RBut = digitalRead(RB);
  LBut = digitalRead(LB);
  if (RBut ==  LOW && LBut == LOW) {
    digitalWrite(t1, HIGH); 
    digitalWrite(t2, HIGH);
    digitalWrite(b1, LOW);
    digitalWrite(b2, LOW);
    Serial.println("forward");
    delay(500);
  } 
  else if (RBut == HIGH && LBut == LOW){
    digitalWrite(t1, LOW); 
    digitalWrite(t2, HIGH);
    digitalWrite(b1, LOW);
    digitalWrite(b2, HIGH);
    Serial.println("right");
    
    delay(500);

  } 
  else if (RBut == LOW && LBut == HIGH){
    digitalWrite(t1, HIGH); 
    digitalWrite(t2, LOW);
    digitalWrite(b1, HIGH);
    digitalWrite(b2, LOW);
    Serial.println("left");
    
    delay(500);

  } 
  if (RBut == HIGH && LBut == HIGH){
    digitalWrite(t1, LOW); 
    digitalWrite(t2, LOW);
    digitalWrite(b1, HIGH);
    digitalWrite(b2, HIGH);
    Serial.println("backward");
    
    delay(500);

    }
}