int led1 = 13;
int led2 = 12;
int led3 = 11;
int led4 = 10;
int led5 = 9;
int led6 = 8;
int led7 = 7;
int led8 = 6;
int led9 = 5;

void setup () {
  
  pinMode(led1 , OUTPUT);
  pinMode(led2 , OUTPUT);
  pinMode(led3 , OUTPUT);
  pinMode(led4 , OUTPUT);
  pinMode(led5 , OUTPUT);
  pinMode(led6 , OUTPUT);
  pinMode(led7 , OUTPUT);
  pinMode(led8 , OUTPUT);
  pinMode(led9 , OUTPUT);
} 

void loop() {
  digitalWrite (led1 , HIGH);
  delay(250);
  digitalWrite(led1 , LOW);
  digitalWrite(led2 , HIGH);
  delay(250);
  digitalWrite(led2 , LOW);
  digitalWrite(led3 , HIGH);
  delay(250);
  digitalWrite(led3 , LOW);
  digitalWrite(led4 , HIGH);
  delay(250);
  digitalWrite(led4 , LOW);
  digitalWrite(led5 , HIGH);
  delay(250);
  digitalWrite(led5 , LOW);
  digitalWrite(led6 , HIGH);
  delay(250);
  digitalWrite(led6 , LOW);
  digitalWrite(led7 , HIGH);
  delay(250);
  digitalWrite(led7 , LOW);
  digitalWrite(led8 , HIGH);
  delay(250);
  digitalWrite(led8 , LOW);
  digitalWrite(led9 , HIGH);
  delay(250);
  digitalWrite(led9 , LOW);
  delay(125);
  digitalWrite (led9 , HIGH);
  delay(250);
  digitalWrite(led9 , LOW);
  digitalWrite(led8 , HIGH);
  delay(250);
  digitalWrite(led8 , LOW);
  digitalWrite(led7 , HIGH);
  delay(250);
  digitalWrite(led7 , LOW);
  digitalWrite(led6 , HIGH);
  delay(250);
  digitalWrite(led6 , LOW);
  digitalWrite(led5 , HIGH);
  delay(250);
  digitalWrite(led5 , LOW);
  digitalWrite(led4 , HIGH);
  delay(250);
  digitalWrite(led4 , LOW);
  digitalWrite(led3 , HIGH);
  delay(250);
  digitalWrite(led3 , LOW);
  digitalWrite(led2 , HIGH);
  delay(250);
  digitalWrite(led2 , LOW);
  digitalWrite(led1 , HIGH);
  delay(250);
  digitalWrite(led1 , LOW);
  delay(250);
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);
  delay(250);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);
  delay(250);
  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);
  delay(250);
  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);
  delay(250);
  digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(250);
  digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(250);
  digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(250);
  digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(250);
  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);
  delay(250);
  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);
  delay(250);
  digitalWrite(led3 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led1 , HIGH);
  delay(250);
  digitalWrite(led3 , LOW);digitalWrite(led2 , LOW);digitalWrite(led1 , LOW);
  delay(250);
  digitalWrite(led1 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);
  delay(250);
  digitalWrite(led1 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);
  delay(250);
  digitalWrite(led2 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led8 , HIGH);
  delay(250);
  digitalWrite(led2 , LOW);digitalWrite(led5 , LOW);digitalWrite(led8 , LOW);
  delay(250);
  digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led9 , HIGH);
  delay(250);
  digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);digitalWrite(led9 , LOW);
  delay(250); 
  digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led9 , HIGH);
  delay(250);
  digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);digitalWrite(led9 , LOW);
  delay(250);
  digitalWrite(led2 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led8 , HIGH);
  delay(250);
  digitalWrite(led2 , LOW);digitalWrite(led5 , LOW);digitalWrite(led8 , LOW);
  delay(250);
  digitalWrite(led1 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);
  delay(250);
  digitalWrite(led1 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);
  delay(250); 
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(125);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(125);
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(125);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(125);
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(125);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(125);
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);  digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led9 , HIGH);
  delay(125);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);  digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led9 , LOW);
  delay(250);
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led1 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led1 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led1 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led1 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led5 , LOW);digitalWrite(led4 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led2 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led3 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led2 , LOW);digitalWrite(led6 , LOW);digitalWrite(led7 , LOW);digitalWrite(led3 , LOW);digitalWrite(led8 , LOW);
  delay(1000);  
  digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led7 , LOW);digitalWrite(led5 , LOW);digitalWrite(led4 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led6, HIGH);digitalWrite(led5 , HIGH);digitalWrite(led7 , HIGH);digitalWrite(led8 , HIGH);digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);
  delay(1000);
  digitalWrite(led6, LOW);digitalWrite(led5 , LOW);digitalWrite(led7 , LOW);digitalWrite(led8 , LOW);digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);
  delay(1000);
  digitalWrite(led1 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led1 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led7 , HIGH);digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led3 , HIGH);digitalWrite(led4 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led7 , LOW);digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led3 , LOW);digitalWrite(led4 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led8 , LOW);
  delay(1000);
  digitalWrite(led7 , HIGH);digitalWrite(led1 , HIGH);digitalWrite(led2 , HIGH);digitalWrite(led5 , HIGH);digitalWrite(led6 , HIGH);digitalWrite(led8 , HIGH);
  delay(1000);
  digitalWrite(led7 , LOW);digitalWrite(led1 , LOW);digitalWrite(led2 , LOW);digitalWrite(led5 , LOW);digitalWrite(led6 , LOW);digitalWrite(led8 , LOW);
  delay(1000);





}