int led1=3;
int led2=4;
int led3=5;
int led4=6;
int led5=7;
int led6=8;
int led7=9;
int led8=10;
int led9=11;
int led10=12;
int led11=13;
int led12=2;

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);
pinMode(led10,OUTPUT);
pinMode(led11,OUTPUT);
pinMode(led12,OUTPUT);

{

  void loop()
}
digitalWrite(led1,LOW);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,LOW);
digitalWrite(led5,HIGH);
digitalWrite(led6,HIGH);
digitalWrite(led7,LOW);
digitalWrite(led8,HIGH);
digitalWrite(led9,HIGH);
digitalWrite(led10,LOW);
digitalWrite(led11,HIGH);
digitalWrite(led12,HIGH);
delay(5000);
digitalWrite(led1,LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,HIGH);
digitalWrite(led4,LOW);
digitalWrite(led5,LOW);
digitalWrite(led6,HIGH);
digitalWrite(led7,LOW);
digitalWrite(led8,LOW);
digitalWrite(led9,HIGH);
digitalWrite(led10,LOW);
digitalWrite(led11,LOW);
digitalWrite(led12,HIGH)
delay(20000);
digitalWrite(led1,LOW);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);
digitalWrite(led5,HIGH);
digitalWrite(led6,LOW);
digitalWrite(led7,HIGH);
digitalWrite(led8,LOW);
digitalWrite(led9,LOW);
digitalWrite(led10,LOW);
digitalWrite(led11,HIGH);
digitalWrite(led12,HIGH);