#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C display(0x27, 16, 2);
int howManyTurnedOn = 0;

int ledY = 13;
int ledR = 12;
int swotch = 3;
int swatch = 5;

void setup() {
  pinMode(ledY, OUTPUT);
  pinMode(swatch, INPUT_PULLUP);
  pinMode(ledR, OUTPUT);
  pinMode(swatch, INPUT_PULLUP);

  display.init();
  display.backlight();

}

void loop() {
  digitalWrite(ledY, digitalRead(swatch));
  digitalWrite(ledR, digitalRead(swotch));


  if(digitalRead(ledY) == HIGH) {
    howManyTurnedOn++;
  } else if (digitalRead(ledY) == LOW){
    howManyTurnedOn--;
  }

  if(digitalRead(ledR) == HIGH) {
    howManyTurnedOn++;
  } else if (digitalRead(ledR) == LOW){
    howManyTurnedOn--;
  }

 
  display.setCursor(0,0);
  display.print(howManyTurnedOn);
}