// Global Variabel
int iVar1 = 0;
int iVar2 = 0;

void setup() {
  // put your setup code here, to run once:
  iVar1 = 10;
  iVar2 = 15;

  pinMode(12, OUTPUT);
  pinMode(8, OUTPUT);

  // Conditional If
  if(iVar1 < iVar2){
    digitalWrite(12, HIGH);
    digitalWrite(8, LOW);
    delay(1000); 

    digitalWrite(12, LOW);
    digitalWrite(8, HIGH);
    delay(2000);
  }
}

void loop() {
  // put your main code here, to repeatedly
}