int count;
void setup(){
   
  Serial.begin(9600);
  pinMode(6, OUTPUT);
  pinMode(8, INPUT_PULLUP);
  pinMode(4, INPUT_PULLUP);
   digitalWrite(6, LOW);
  
}
void loop(){
 
  if(digitalRead(8)==LOW){
    
    digitalWrite(6, HIGH);
    count+=1;
    delay(100);
    Serial.println(count);}
  else if (digitalRead(4)==LOW){
      digitalWrite(6, HIGH);
      delay(100);
      count-=1;
      Serial.println(count);
    }
    else{
     digitalWrite(6, HIGH);
    }
   
    }