//using wile loop instead of for loop
//running a counter
int Num;
void setup(){
  Serial.begin(115200);

}
void loop(){
  Serial.println("Count upto?");
  while(Serial.available()==0){}
  Num=Serial.parseInt();
  int j=1;
  while(j<=Num){
  Serial.println(j);
  delay(500);
  j=j+1;
  }
}