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const int redLedPin = 2;
const int blueLedPin = 12;

int redLedState = HIGH;
int blueLedState = HIGH;


unsigned long redLedTime = 1000;
unsigned long blueLedTime = 3000;

unsigned long timeNowRedP = 0;

unsigned long timeNowBlueP = 0;

unsigned long timeNow = 0;


void setup()
{
  pinMode(redLedPin, OUTPUT);
  pinMode(blueLedPin, OUTPUT);
}

void loop()
{
  timeNow = millis();
  if(timeNow - timeNowRedP >= redLedTime){
    timeNowRedP = timeNow;
    digitalWrite(redLedPin,redLedState);
    redLedState = !redLedState;

  }
  if(timeNow - timeNowBlueP >= blueLedTime){
    timeNowBlueP = timeNow;
    digitalWrite(blueLedPin,blueLedState);
    blueLedState = !blueLedState;

  }




}