void setup() {
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
}
 
void loop() {
digitalWrite(3, HIGH);  
digitalWrite(5, HIGH);  
delay(1000);              
digitalWrite(5, LOW);   
digitalWrite(6, HIGH);   
delay(1000);  
digitalWrite(6, LOW);
digitalWrite(3, LOW);
digitalWrite(2, HIGH);  
digitalWrite(7, HIGH);  
delay(1000);  
digitalWrite(7, LOW); 
digitalWrite(2, LOW);  
}