int button_pin = 2;
int led_red = 3;
int led_green = 4;

void program1(){
    digitalWrite(led_green, HIGH);
    delay(400);
    digitalWrite(led_green, LOW);
    delay(400);
}
void program2(){
    digitalWrite(led_red, HIGH);
    delay(400);
    digitalWrite(led_red, LOW);
    delay(400);
}
void setup() {
  pinMode(button_pin, INPUT);
  pinMode(led_red, OUTPUT);
  pinMode(led_green,OUTPUT); 
}
void loop() {
  int val = digitalRead(button_pin);
  if (val == 1) {
    digitalWrite(led_red, LOW);  // set led to 5V
    for(int n=0;n<3;n++){// red blink 3 times
      program2();
    }
    for(int n=0;n<5;n++){// green blink 5 times
      program1();
    }
    
    // end button process

  } else {
    digitalWrite(led_red, LOW);  // turn off led
    digitalWrite(led_green, LOW);  // turn off led
  }
}