void setup() {
pinMode(2 , OUTPUT);
pinMode(3 , OUTPUT);
pinMode(4 , OUTPUT);
pinMode(5 , OUTPUT);
pinMode(6 , OUTPUT);
pinMode(7 , OUTPUT);
pinMode(8 , OUTPUT);
pinMode(9 , OUTPUT);
pinMode(10 , OUTPUT);
pinMode(11 , OUTPUT);
pinMode(12 , OUTPUT);
pinMode(13 , OUTPUT);
} 

void loop() {
digitalWrite(10, HIGH);
digitalWrite(7 , HIGH);
digitalWrite(11, HIGH );
digitalWrite(2, HIGH );//
delay(5000);
digitalWrite(2, LOW); 
digitalWrite(3, HIGH );
delay(2000);
digitalWrite(3, LOW );
digitalWrite(4, HIGH );
digitalWrite(7, LOW );
digitalWrite(5, HIGH );
delay(5000);
digitalWrite(5, LOW );
digitalWrite(6, HIGH );//
delay(2000);
digitalWrite(6, LOW );
digitalWrite(7, HIGH );
digitalWrite(10, LOW );
digitalWrite(8, HIGH );
delay(5000);
digitalWrite(8, LOW);
digitalWrite(9, HIGH );
delay(2000);
digitalWrite(9, LOW );
digitalWrite(10, HIGH ); 
digitalWrite(11, LOW);
digitalWrite(13, HIGH );
delay(5000);
digitalWrite(13, LOW );
digitalWrite(12, HIGH );
delay(2000);
digitalWrite(12, LOW );
digitalWrite(11, HIGH );
digitalWrite(4, LOW);
}