const int pinLED1 = 11;
const int pinLED2 = 12;
const int pinLED3 = 13;

void setup() {
  // put your setup code here, to run once:
pinMode(pinLED1, OUTPUT);
pinMode(pinLED2, OUTPUT);
pinMode(pinLED3, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
for(int i=0; i<9; i++){
if (i==1){
digitalWrite(pinLED1, HIGH);
digitalWrite(pinLED2, LOW);
digitalWrite(pinLED3, LOW);
}
else if (i==2){
digitalWrite(pinLED1, HIGH);
digitalWrite(pinLED2, HIGH);
digitalWrite(pinLED3, LOW);
}
else if (i==3){
digitalWrite(pinLED1, HIGH);
digitalWrite(pinLED2, HIGH);
digitalWrite(pinLED3, HIGH);
}
else if(i==4){
digitalWrite(pinLED1,LOW);
digitalWrite(pinLED2, LOW);
digitalWrite(pinLED3, LOW);
}
else if(i==5){
digitalWrite(pinLED1,LOW);
digitalWrite(pinLED2, LOW);
digitalWrite(pinLED3, HIGH);
}
else if(i==6){
digitalWrite(pinLED1,LOW);
digitalWrite(pinLED2, HIGH);
digitalWrite(pinLED3, HIGH);
}
else if(i==7){
digitalWrite(pinLED1,HIGH);
digitalWrite(pinLED2, HIGH);
digitalWrite(pinLED3, HIGH);
}
else if(i==8){
digitalWrite(pinLED1,LOW);
digitalWrite(pinLED2, LOW);
digitalWrite(pinLED3, LOW);

}
else{
digitalWrite(pinLED1, HIGH);
digitalWrite(pinLED2, LOW);
digitalWrite(pinLED3, LOW);
}
delay(500);
}
}