unsigned long myTime, myTime2; // set the time
byte ledPins[]={13,12,11,10};
byte pirPins[]={7,6,5,4};



void setup() {
 //set led pins as out put.

  for(byte q=0;q<4; q++){
    pinMode(ledPins[q],OUTPUT);
  }
//set pirpins as input.
  for(byte x=0;x<4; x++){
pinMode(pirPins[x], INPUT);

  }
  

  for(byte w=0; w<4; w++){
  digitalWrite(ledPins[w],HIGH);
  delay(100);


}

for(byte r=3; r >= 0 ; r--){
  digitalWrite(ledPins[r], LOW);
  delay(100);
}

}



void loop() {
 
    if (millis() - myTime > 10) {
      myTime = millis();

      if (digitalRead(pirPins[0]) == HIGH) { 
        digitalWrite(ledPins[q], HIGH); 
        delay(1000);
        digitalWrite(ledPins[q], LOW); 
      }
    }
  }