Arduino DigitShield Random Numbers

#include <DigitShield.h>
int d = 550;
int blinkDelay = 5000;
int randNum;
int led1 = 7;
int led2 = 6;


void setup() {
  DigitShield.begin();
  DigitShield.setPrecision(0);
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
}

void loop() {
  randNum = random(0,1000);
  DigitShield.setLeadingZeros(false);
  DigitShield.setValue(randNum);
  delay(d);
  if (randNum == 11){
    digitalWrite(led1,HIGH);
    delay(blinkDelay);
    digitalWrite(led1,LOW);
  }
  if (randNum == 200){
    digitalWrite(led2,HIGH);
    delay(blinkDelay);
    digitalWrite(led2,LOW);
  }
  if (randNum == 21){
    digitalWrite(led1,HIGH);
    digitalWrite(led2,HIGH);
    delay(blinkDelay);
    digitalWrite(led1,LOW);
    digitalWrite(led2,LOW);
  }

}