const int ledPin = 2;        
const int buttonPin1 = 25;     
const int buttonPin2 = 35;      


int ledState = LOW;            
int buttonState1 = HIGH;      
int buttonState2 = HIGH;       
int lastButtonState2 = HIGH;   
unsigned long previousMillis = 0;
const long onInterval = 3000;  
long offInterval = 1000;     

void setup() {
  pinMode(ledPin, OUTPUT);             
  pinMode(buttonPin1, INPUT_PULLUP);    
  pinMode(buttonPin2, INPUT_PULLUP);    
}

void loop() {
  unsigned long currentMillis = millis();

  buttonState1 = digitalRead(buttonPin1);
  buttonState2 = digitalRead(buttonPin2);

  
  if (buttonState1 == LOW) {
    ledState = !ledState;
    previousMillis = currentMillis;
  }

  if (buttonState2 == LOW && lastButtonState2 == HIGH) {
    if (offInterval == 1000) {
      offInterval = 3000; 
    } else {
      offInterval = 1000;
    }
  }

  lastButtonState2 = buttonState2;

  if (ledState == HIGH && currentMillis - previousMillis >= onInterval) {
    ledState = LOW; 
    previousMillis = currentMillis;
  } else if (ledState == LOW && currentMillis - previousMillis >= offInterval) {
    ledState = HIGH;  
    previousMillis = currentMillis;
  }

  digitalWrite(ledPin, ledState);
}