int x = 3;
int y = 4;
void setup() {
  pinMode(10, OUTPUT);
  pinMode(5, OUTPUT);
  // put your setup code here, to run once:

}

void loop() {

  
  for (int i = 0; i < x; i++) {
    digitalWrite(10, HIGH);
    digitalWrite(5, LOW);
    delay(500);

    digitalWrite(10, LOW);
    digitalWrite(5, LOW);
    delay(500);
  }


  for (int i = 0; i < y; i++) {
    digitalWrite(5, HIGH);
    digitalWrite(10, LOW);
    delay(500);

    digitalWrite(5, LOW);
    digitalWrite(10, LOW);
    delay(500);
  }
  // put your main code here, to run repeatedly:

}