Need help Arduino Guessing number

[heikuro]

Hi, I made a code for guess a random number but there is a pb...
When I type a number like 2, there is a 0 who will be type automaticaly after my number and i don't know why. I also tryied to add 2 leds for if the random number is higher or lower.( But i can't turn off these leds.)
There is the code :

int randNumber;
int player1_number;
int LedR = 2;
int LedB = 3;

void setup() {
Serial.begin(9600);
randomSeed(analogRead(0));
Serial.println("");
Serial.println(" ");
Serial.println(" Numerical guessing game ");
Serial.println(" ");
Serial.println("");
Serial.print("Devinez le nombre aléatoire:");
randNumber = random(0, 10);

while(Serial.read()>= 0){}

}

void loop() {

while (Serial.available() > 0 )  {
  delay( 10 );  

  player1_number = Serial.parseInt();
  Serial.println ( player1_number ); 


  if(player1_number==randNumber){     
  Serial.println("Bravo !");
  digitalWrite(LedR,HIGH);
  digitalWrite(LedB,HIGH);
  randNumber = random(0, 10);
  Serial.print("Devinez le nombre aléatoire:");
  }
  else if( player1_number < randNumber){
   Serial.println("C'est plus grand");
   digitalWrite(LedR,HIGH);
  }
  else if( player1_number > randNumber){
   Serial.println("C'est plus petit");
   digitalWrite(LedB,HIGH);
  }

}

}

[UKHeliBob]

The easier you make it to read and copy your code the more likely it is that you will get help

Please follow the advice given in the link below when posting code , use code tags and post the code here

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[UKHeliBob]

@heikuro

When I type a number like 2, there is a 0 who will be type automaticaly after my number

If you have the Line ending set to anything other than "No line ending" in the Serial monitor then you will have this problem because of the extra line ending characters

@heikuro

But i can't turn off these leds.

What is stopping you ?

[UKHeliBob]

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[heikuro]

Thx all is good now, i just forgot how to switch off lights but i remember it xD

[Railroader]

What is the intention with this line of code in setup: while(Serial.read()>= 0){}

[Grumpy_Mike]

Also you do not set the LED pins to be outputs, this will invert the way you can get a a weak light from the LED as you turn the pull up resistor on or off.