#define led1 13
#define led2 12
#define led3 11
#define led4 10
#define led5 9
#define led6 8
#define led7 7
#define led8 6
#define led9 5
#define led10 4
#define led11 3
#define led12 2
#define led13 1
#define led14 0

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);
pinMode(led13, OUTPUT);
pinMode(led14, OUTPUT);

}

void loop() {
digitalWrite(led1, LOW);
delay(500);
digitalWrite(led1, HIGH);
delay(2000);
 
digitalWrite(led2, LOW);
delay(500);
digitalWrite(led2, HIGH);
delay(2000);
 
digitalWrite(led3, LOW);
delay(500);
digitalWrite(led3, HIGH);
delay(2000);
 
digitalWrite(led4, LOW);
delay(500);
digitalWrite(led4, HIGH);
delay(2000);
 
digitalWrite(led5, LOW);
delay(500);
digitalWrite(led5, HIGH);
delay(2000);
 
digitalWrite(led6, LOW);
delay(500);
digitalWrite(led6, HIGH);
delay(2000);
 
digitalWrite(led7, LOW);
delay(500);
digitalWrite(led7, HIGH);
delay(2000);
 
digitalWrite(led8, LOW);
delay(500);
digitalWrite(led8, HIGH);
delay(2000);
 
digitalWrite(led9, LOW);
delay(500);
digitalWrite(led9, HIGH);
delay(2000);

digitalWrite(led10, LOW);
delay(500);
digitalWrite(led10, HIGH);
delay(2000);

digitalWrite(led11, LOW);
delay(500);
digitalWrite(led11, HIGH);
delay(2000);
 
digitalWrite(led12, LOW);
delay(500);
digitalWrite(led12, HIGH);
delay(2000);
 
digitalWrite(led13, LOW);
delay(500);
digitalWrite(led13, HIGH);
delay(2000);

digitalWrite(led14, LOW);
delay(500);
digitalWrite(led14, HIGH);
delay(2000);


}