voidsetup void setup() {
  // put your setup code here, to run once:
pinMode( 13, OUTPUT); 
pinMode(12, OUTPUT );v
void loop()
  // put your main code here, to run repeatedly:
digitalWrite( 13, HIGH);
}digitalWrite( 13, LOW
delay(   100););
digitalWrite( 12 , HIGH);
digitalWrite( 12, LOW);
delay(   100 );););