#include <LiquidCrystal.h>
LiquidCrystal lcd(7,6,5,4,3,2);

int var1 = 1200;
int var2 = 4500;

void setup() {
  lcd.begin(16,2);
  lcd.print("yo");
}

void loop() {
  if (digitalRead(8) == 0){
    while (digitalRead(8) == 0);
    lcd.setCursor(1,1);
    lcd.print(var1);
  }
  if (digitalRead(9) == 0){
    while (digitalRead(9) == 0);
    lcd.setCursor(1,1);
    lcd.print(var2);
  }
}