#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
word count;


void setup() {
  // put your setup code here, to run once:
  pinMode(8, INPUT);
  pinMode(9, INPUT);
  pinMode(10, INPUT);
  digitalWrite(8,1);
  digitalWrite(9,1);
  digitalWrite(10,1);
  lcd.begin(16,2);
  lcd.clear();
}

void loop() {
  // put your main code here, to run repeatedly:
  lcd.setCursor(0,0);
  lcd.print("COUNTER:");
  lcd.print(count);
  lcd.print("  ");
if(digitalRead(8)==0) {
  count=count+1;
  tone(4, 262, 250);
  delay(200);
  }
if(digitalRead(9)==0 && count>0) {
  count=count-1;
  delay(200);
  }
if(digitalRead(10)==0) {
  count=0;
  delay(200);
  }
}