#define blue 2
#define red  3
#define yellow 4

void setup() {
  // put your setup code here, to run once:
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, INPUT_PULLUP);
pinMode(6, INPUT_PULLUP);
Serial.begin(9600);

}

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

  int SW1, SW2; 
  SW1 = digitalRead(5);
  SW2 = digitalRead(6);
  delay(1000);
  Serial.print("SW1 (logic) = ");Serial.print(SW1);  Serial.print("   ");
  Serial.print("SW2 (logic) = ");Serial.println(SW2);
  if(SW1 == 0 ){
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(blue, LOW);
  delay(500);
  } else if(SW2 == 0) 
  {
  digitalWrite(yellow, HIGH);
  delay(500);
  digitalWrite(yellow, LOW);
  delay(500);
  } else // SW1 = Sw2 = 1
  {
    digitalWrite(red, HIGH);
  delay(500);
  digitalWrite(red, LOW);
  delay(500);}
}