int led=2;
int sklopka=3;
int sklopka_b=4;
int skl_a;
int skl_b;

void setup() {
  // put your setup code here, to run once:
 pinMode(led, OUTPUT);
 pinMode(sklopka, INPUT_PULLUP);
 pinMode(sklopka_b, INPUT_PULLUP);
 digitalWrite(led, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
skl_a=digitalRead(sklopka);
skl_b=digitalRead(sklopka_b);
if((skl_a==LOW) || (skl_b==LOW )){
  digitalWrite(led, HIGH);
}

else{
digitalWrite(led, LOW);  
}

}