void setup() {
  Serial.begin(115200);
  pinMode(02, INPUT);
  pinMode(05, INPUT);
  pinMode(15, OUTPUT);
}

void loop(){
  int a = digitalRead(02);
  int b = digitalRead(05);

if (a==1&&b==0){
  digitalWrite(15, HIGH);
}
else if (a==1&&b==1){
  digitalWrite(15, HIGH);
  delay(100);
  digitalWrite(15, LOW);
  delay(100);

}
else{digitalWrite(15, LOW);}
}