int redLED = 12; 
 int greenLED = 11;
 int redledState = LOW;
 int greenledState = LOW;
 int red =0;
 int green =0;
 unsigned  long currentMillis = 0;
 unsigned  long redcurrentMillis = 0; 
 unsigned  long greencurrentMillis = 0; 
 unsigned  long redPreviousMillis = 0;
 unsigned  long greenPreviousMillis = 0;
 const unsigned long redPeriod = 500;
 const unsigned long greenPeriod = 1500;
 void setup() {
  Serial.begin(9600);
  pinMode(redLED, OUTPUT); 
  pinMode(greenLED, OUTPUT);
 }
 void loop() {
  currentMillis = millis();
  blinkLED(); 
 } 

 void blinkLED() {
  if (currentMillis - redPreviousMillis >= redPeriod) {
   redPreviousMillis = currentMillis;
   if (redledState == LOW) {
    redledState = HIGH;
   }
   else {
    redledState = LOW;
    red = red+1;
    Serial.print("red");
    Serial.println(red);

   }
  digitalWrite(redLED, redledState);
  }if (currentMillis - greenPreviousMillis >= greenPeriod) {
   greenPreviousMillis = currentMillis;
   if (greenledState == LOW) {
    greenledState = HIGH;
   }
   else {
    greenledState = LOW;
     green = green+1;
    Serial.println("Green");
   }
  digitalWrite(greenLED, greenledState);
 }
 }