arduio_code

#include <LiquidCrystal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int LED1=6;
int LED2=7;
int IR1=8;
int IR2=10;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() 
{
  Serial.begin(9600);
  pinMode(LED1, OUTPUT);   
  pinMode(LED2, OUTPUT); 
  digitalWrite(LED1, LOW); 
  digitalWrite(LED2, LOW);    
  digitalRead(8);//IR1
  digitalRead(9);//IR2
  lcd.begin(16, 2);
  lcd.clear();
  lcd.print("LIGHT");
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("MONITOR SYSTEM");
  delay(1000);
  lcd.clear(); 
}
void loop()                    
{
  while(1)
  {
    if(digitalRead(IR1) ==LOW)
    {
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("PERSON1 DETECTED");
      delay(1000); 
      digitalWrite(LED1,HIGH);
      delay(1000);
    }
    if(digitalRead(IR2) ==LOW)
    {
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("PERSON2 DETECTED");
      delay(1000);
      digitalWrite(LED2,HIGH);
      delay(1000);
    }
    else
    {
      digitalWrite(LED1,LOW);
      digitalWrite(LED2,LOW);
      delay(100);
    }
  } 
}