int supply, sup,supply1, sup1,supply2, sup2;

void setup() {
    Serial.begin(9600);
    pinMode(A0,INPUT);
    pinMode(9,OUTPUT);
    pinMode(A1,INPUT);
    pinMode(10,OUTPUT);
    pinMode(A2,INPUT);
    pinMode(11,OUTPUT);
  //  digitalWrite(9, HIGH);

}

void loop() {
    supply = analogRead(A0);
    sup = 5*(supply/1023);
    supply1 = analogRead(A1);
    sup1 = 5*(supply1/1023);
    supply2 = analogRead(A2);
    sup2 = 5*(supply2/1023);

    if(sup == 5) {
      digitalWrite(9,LOW);
    }else{
      digitalWrite(9, HIGH);
    }
    if(sup1 == 5) {
      digitalWrite(10,LOW);
    }else{
      digitalWrite(10, HIGH);
    }
    if(sup2 == 5) {
      digitalWrite(11,LOW);
    }else{
      digitalWrite(11, HIGH);
    }
}