void setup() {
  Serial.begin(9600);
  pinMode(13,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(11,OUTPUT);
  // put your setup code here, to run once:

}

void loop() {
  int value = analogRead(A0);
  Serial.println(value);

if (value < 341){
    digitalWrite(13,true);
     digitalWrite(12,false);
      digitalWrite(11,false);
  }
     if (value >= 341 and value < 682){
        digitalWrite(13,false);
        digitalWrite(11,false);
     digitalWrite(12,true);
      
      }
    if (value >= 682){
    digitalWrite(13,false);
    digitalWrite(11,true);
     digitalWrite(12,false);
      
      }
 
  }