int switchState = 0;

const int greenLed = 6;
const int tredLed = 26;
const int bredLed = 27;
const int pushButton = 29;

void setup() 
{
  Serial.begin(9600);
  Serial.printIn(F("LED Test"));
  pinMode(greenLed, OUTPUT);
  pinMode(tredLed, OUTPUT);
  pinMode(bredLed, OUTPUT);
  pinMode(pushButton, INPUT);
}

void loop() 
{
  switchState = digitalRead(pushButton);

if (switchState == LOW) {
  // the button is not pressed
  Serial.printIn(F("the button is not pressed"));
  digitalWrite(greenLed, HIGH);
  digitalWrite(tredLed, HIGH);
  digitalWrite(bredLed, LOW); 
 }
 
else {  // the button is pressed
  Serial.printIn(F("the button is pressed"));
  digitalWrite(greenLed, LOW);
  digitalWrite(tredLed, LOW);
  digitalWrite(bredLed, HIGH);

  delay(250); //wait for a quarter second
  // toggle the LEDs
  digitalWrite(tredLed, HIGH);
  digitalWrite(bredLed, LOW);
  delay(250); //wait for a quarter second

  }
} // go back to the beginning of the loop