void setup() {
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(9, LOW);     
  digitalWrite(8, HIGH);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, LOW);   
  digitalWrite(4, LOW);    
  digitalWrite(3, LOW);
  delay(1000);

  //affichage du un
  digitalWrite(9, LOW);     
  digitalWrite(8, HIGH);   
  digitalWrite(7, LOW);    
  digitalWrite(6, HIGH);     
  digitalWrite(5, HIGH);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, HIGH);   
  delay(1000);
  //affichage du deux
  digitalWrite(9, HIGH);     
  digitalWrite(8, LOW);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, HIGH);   
  digitalWrite(4, LOW);    
  digitalWrite(3, LOW);
  delay(1000);
  //affichage du trois  
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, HIGH);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, LOW);
  delay(1000);
  //affichage du quatre
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, LOW);    
  digitalWrite(6, HIGH);     
  digitalWrite(5, LOW);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, HIGH);   
  delay(1000);
  //affichage du cinq
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, HIGH);    
  digitalWrite(6, LOW);     
  digitalWrite(5, LOW);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, LOW);
  delay(1000);
  //affichage du six  
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, HIGH);    
  digitalWrite(6, LOW);     
  digitalWrite(5, LOW);   
  digitalWrite(4, LOW);    
  digitalWrite(3, LOW);
  delay(1000);
  //affichage du sept 
  digitalWrite(9, LOW);     
  digitalWrite(8, HIGH);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, HIGH);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, HIGH);
  delay(1000);
    //affichage du huit 
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, LOW);   
  digitalWrite(4, LOW);    
  digitalWrite(3, LOW);
  delay(1000);
    //affichage du NEUF  
  digitalWrite(9, LOW);     
  digitalWrite(8, LOW);   
  digitalWrite(7, LOW);    
  digitalWrite(6, LOW);     
  digitalWrite(5, LOW);   
  digitalWrite(4, HIGH);    
  digitalWrite(3, LOW);
  delay(1000);


}