const int LED=5;
const int LED1=6;
const int LED2=7;
const int LED3=8;
void setup()
{
   pinMode(LED, OUTPUT);
   pinMode(LED1, OUTPUT);
   pinMode(LED2, OUTPUT);
   pinMode(LED3, OUTPUT);
}
void loop() {
    digitalWrite(LED, HIGH);
    delay(1000);
    digitalWrite(LED, LOW);
    delay(1000);
    
    digitalWrite(LED1, HIGH);
    delay(200);
    digitalWrite(LED1, LOW);
    delay(200);

    digitalWrite(LED2, HIGH);
    delay(300);
    digitalWrite(LED2, LOW);
    delay(300);

    digitalWrite(LED3, HIGH);
    delay(400);
    digitalWrite(LED3, LOW);
    delay(400);
}