int led1=13;
int led2=12;
int led3=11;
int IR1=2;
int IR2=3;
int IR3=4;
int val1=0;
int val2=0;
int val3=0;

void setup()
{
  pinMode(IR1,INPUT);
  pinMode(IR2,INPUT);
  pinMode(IR3,INPUT);
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  val1=digitalRead(IR1);
  val2=digitalRead(IR2);
  val3=digitalRead(IR3);

if(val1 == 0)
{
  digitalWrite(led1,HIGH);
}
else
{
  digitalWrite(led1,LOW);
}
if(val2==0)
{
  digitalWrite(led2,HIGH);
}
else{
  digitalWrite(led2,LOW);
}
if(val3==0)
{
  digitalWrite(led3,HIGH);
}
else
{
  digitalWrite(led3, LOW);
}
delay(200);
}