#include <LiquidCrystal_I2C.h>
#define BTN1 3
#define BTN2 4

LiquidCrystal_I2C lcd(0x27, 16,2);
int pushCounter = 0;

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(BTN1, INPUT_PULLUP);
  pinMode(BTN2, INPUT_PULLUP);
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("Count: ");
  lcd.setCursor(0, 1);
  lcd.print(pushCounter);

  if(digitalRead(BTN1) == LOW) {
    delay(100);
    lcd.clear();
    pushCounter = pushCounter + 1;
  }

  if(digitalRead(BTN2) == LOW) {
    delay(100);
    lcd.clear();
    pushCounter = pushCounter - 1;
  }

}