void setup() {
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(A0, OUTPUT);
  pinMode(A1, OUTPUT);
}
void loop() {
  //square
  digitalWrite(12, HIGH);  
  delay(100);
  digitalWrite(12, LOW); 

  digitalWrite(13, HIGH);  
  delay(100);
  digitalWrite(13, LOW);   

  digitalWrite(A1, HIGH);
  delay(100);
  digitalWrite(A1, LOW);

  digitalWrite(A0, HIGH);  
  delay(100);
  digitalWrite(A0, LOW);    

  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);  

  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);      

  digitalWrite(3, HIGH);
  delay(100);
  digitalWrite(3, LOW);                                                       
                      
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);   

  digitalWrite(1, HIGH);
  delay(100);
  digitalWrite(1, LOW); 

  digitalWrite(0, HIGH);
  delay(100);
  digitalWrite(0, LOW);  

  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);  

  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);  

  digitalWrite(12, HIGH);  
  delay(100);
  digitalWrite(12, LOW);
  delay(500);

  //circle       
  digitalWrite(13, HIGH);  
  delay(100);
  digitalWrite(13, LOW);   

  digitalWrite(A1, HIGH);
  delay(100);
  digitalWrite(A1, LOW);  

  digitalWrite(11, HIGH);
  delay(100);
  digitalWrite(11, LOW);  

  digitalWrite(7, HIGH);
  delay(100);
  digitalWrite(7, LOW);                                                        
                      
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);   

  digitalWrite(1, HIGH);
  delay(100);
  digitalWrite(1, LOW); 

  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);  

  digitalWrite(8, HIGH);
  delay(100);
  digitalWrite(8, LOW);   

  digitalWrite(13, HIGH);  
  delay(100);
  digitalWrite(13, LOW);

  delay(500);
                           
                         

}