const int LED1=1;
const int LED2=2;
const int LED3=3;

const int LED4=4;
const int LED5=5;
const int LED6=6;

const int LED7=7;
const int LED8=8;
const int LED9=9;
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(1);
digitalWrite(LED2, HIGH);
delay(1);
digitalWrite(LED3, HIGH);
delay(1500);
digitalWrite(LED1, LOW);
delay(1);
digitalWrite(LED2, LOW);
delay(1);
digitalWrite(LED3, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(1);
digitalWrite(LED2, HIGH);
delay(1);
digitalWrite(LED3, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(1);
digitalWrite(LED2, LOW);
delay(1);
digitalWrite(LED3, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(1);
digitalWrite(LED2, HIGH);
delay(1);
digitalWrite(LED3, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(1);
digitalWrite(LED2, LOW);
delay(1);
digitalWrite(LED3, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(1);
digitalWrite(LED2, HIGH);
delay(1);
digitalWrite(LED3, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(1);
digitalWrite(LED2, LOW);
delay(1);
digitalWrite(LED3, LOW);
delay(250);

digitalWrite(LED4, HIGH);
delay(1);
digitalWrite(LED5, HIGH);
delay(1);
digitalWrite(LED6, HIGH);
delay(1500);
digitalWrite(LED4, LOW);
delay(1);
digitalWrite(LED5, LOW);
delay(1);
digitalWrite(LED6, LOW);
delay(250);
digitalWrite(LED4, HIGH);
delay(1);
digitalWrite(LED5, HIGH);
delay(1);
digitalWrite(LED6, HIGH);
delay(250);
digitalWrite(LED4, LOW);
delay(1);
digitalWrite(LED5, LOW);
delay(1);
digitalWrite(LED6, LOW);
delay(250);
digitalWrite(LED4, HIGH);
delay(1);
digitalWrite(LED5, HIGH);
delay(1);
digitalWrite(LED6, HIGH);
delay(250);
digitalWrite(LED4, LOW);
delay(1);
digitalWrite(LED5, LOW);
delay(1);
digitalWrite(LED6, LOW);
delay(250);
digitalWrite(LED4, HIGH);
delay(1);
digitalWrite(LED5, HIGH);
delay(1);
digitalWrite(LED6, HIGH);
delay(250);
digitalWrite(LED4, LOW);
delay(1);
digitalWrite(LED5, LOW);
delay(1);
digitalWrite(LED6, LOW);
delay(250);

digitalWrite(LED7, HIGH);
delay(1);
digitalWrite(LED8, HIGH);
delay(1);
digitalWrite(LED9, HIGH);
delay(1500);
digitalWrite(LED7, LOW);
delay(1);
digitalWrite(LED8, LOW);
delay(1);
digitalWrite(LED9, LOW);
delay(250);
digitalWrite(LED7, HIGH);
delay(1);
digitalWrite(LED8, HIGH);
delay(1);
digitalWrite(LED9, HIGH);
delay(250);
digitalWrite(LED7, LOW);
delay(1);
digitalWrite(LED8, LOW);
delay(1);
digitalWrite(LED9, LOW);
delay(250);
digitalWrite(LED7, HIGH);
delay(1);
digitalWrite(LED8, HIGH);
delay(1);
digitalWrite(LED9, HIGH);
delay(250);
digitalWrite(LED7, LOW);
delay(1);
digitalWrite(LED8, LOW);
delay(1);
digitalWrite(LED9, LOW);
delay(250);
digitalWrite(LED7, HIGH);
delay(1);
digitalWrite(LED8, HIGH);
delay(1);
digitalWrite(LED9, HIGH);
delay(250);
digitalWrite(LED7, LOW);
delay(1);
digitalWrite(LED8, LOW);
delay(1);
digitalWrite(LED9, LOW);
delay(250);

}