#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
int red=5;
int green=12;
int sw=6;
int flag=0;
void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(YELLOW, OUTPUT);
  pinMode(BLUE, OUTPUT);
  pinMode(sw, INPUT);
  // put your setup code here, to run once:

}

void loop() {
  int push=digitalRead(sw);
  if(push==1 && flag==0)
  {
    digitalWrite(YELLOW, HIGH);
    delay(1000);
    digitalWrite(BLUE,LOW);
    delay(1000);
    flag=1;
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("YELLOW : ON");
    lcd.setCursor(0,1);
    lcd.print("BLUE : OFF");

  }
  else if(push==1 && flag==1)
  {
    digitalWrite(YELLOW, LOW);
    delay(1000);
    digitalWrite(BLUE,HIGH);
    delay(1000);
    flag=0;
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("YELLOW : OFF");
    lcd.setCursor(0,1);
    lcd.print("BLUE :ON");

  }

}