const int buttonPin1 =2;
const int buttonPin2 =3;
const int buttonPin3 =4;
const int ledPin1 =5;
const int ledPin2 =6;
const int ledPin3 =7;
int buttonstate=0;



void setup() {
 pinMode(ledPin1, OUTPUT);
 pinMode(ledPin2, OUTPUT);
 pinMode(ledPin3, OUTPUT);
 pinMode(buttonPin1, INPUT);
 pinMode(buttonPin2, INPUT);
 pinMode(buttonPin3, INPUT);
}
void loop() {
 bool buttonState1 = digitalRead(buttonPin1);
 bool buttonState2 = digitalRead(buttonPin2);
 bool buttonState3 = digitalRead(buttonPin3);
 if (buttonState1 == HIGH) {
 digitalWrite(ledPin1, HIGH);
 }else {
 digitalWrite(ledPin3, LOW);
 }
 if (buttonState2 == HIGH){
  digitalWrite(ledPin2, HIGH);
 }else {
  digitalWrite(ledPin1, LOW);
 }
 if (buttonState3 == HIGH){
  digitalWrite(ledPin3, HIGH);
 }
 else {
  digitalWrite(ledPin2, LOW);
 }
}