#define LED1 19
#define LED2 18
#define PB1 27
#define PB2 25

void setup() 
{
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Blink Program started");

  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(PB1, INPUT);
  pinMode(PB2, INPUT);
}

void loop()
{
  if (digitalRead(PB1) == 1 && digitalRead(PB2) == 0) //PB1 is pressed
  {
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, LOW);
  }
  else
  {
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);
  }

  if (digitalRead(PB1) == 0 && digitalRead(PB2) == 1) //PB2 is pressed
  {
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, HIGH);
  }
  else
  {
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);
  }

  if (digitalRead(PB1) == 0 && digitalRead(PB2) == 0) //Both push button is pressed
  {
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, LOW);
  }
  else
  {
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);
  }
}