int RLED = 3;
int BLED = 2;
int button = 4;

void setup() {
  // Initalize digital pin RLED (pin 5) as output
pinMode (RLED, OUTPUT);
// Initalize digital pin BLED (pin 13) as output
pinMode (BLED, OUTPUT);
pinMode(button, INPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
int signal = digitalRead(button);
Serial.println(signal);
if (signal == 1 ){
  digitalWrite(BLED, LOW);
 digitalWrite(RLED, HIGH);
 delay(500);
digitalWrite(RLED, LOW);
delay(500);
}
  else{
    digitalWrite(BLED, HIGH);
    digitalWrite(RLED,LOW);
    delay(200);
    digitalWrite(RLED, HIGH);
    digitalWrite(BLED, LOW);
    delay(200);
  }
}