const int led = 3;
int pb = 2;
const int buz = 1;
boolean cuih;

void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(buz, OUTPUT);
pinMode(pb, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
cuih = digitalRead(pb);
if(cuih == HIGH) {
  digitalWrite(led, HIGH);
  digitalWrite(buz, HIGH);
} else {
  digitalWrite(led, LOW);
  digitalWrite(buz, LOW);
}
}