#include<LiquidCrystal.h>
LiquidCrystal lcd(4, 5, 6, 7, 8, 9);
int btn = 3;
void setup() {
  pinMode(btn, INPUT_PULLUP);
  lcd.begin(16, 2);
  // put your setup code here, to run once:

}

void loop() {
  if (digitalRead(btn) == 0) {
    lcd.clear();
    while (1) {
      lcd.setCursor(5, 0);
      lcd.print("Hello");
     // lcd.print(digitalRead(btn));
      if (digitalRead(btn) == 1) {

      }
    }
    // put your main code here, to run repeatedly:
  }
  //lcd.setCursor(11, 0);
  //lcd.print(digitalRead(btn));
}