byte i;
void setup() {
  // put your setup code here, to run once:
 pinMode(13, OUTPUT);
 pinMode(12, OUTPUT);
 pinMode(0, INPUT_PULLUP);

}

void loop() {
  // put your main code here, to run repeatedly:
 if(!digitalRead(0)){

 
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, HIGH);
  delay(1000);
  digitalWrite(12, LOW);
 
 }
  
}