int razel=4;
int vera=3;

void setup() {
  
  pinMode(razel, INPUT_PULLUP);// define pin razel as input for push button
  pinMode(vera, OUTPUT);// define pin vera as output
}

void loop() {
  
  int love = digitalRead(razel);// read pin razel and put the result in the "love" variable
  if(love == LOW){
    digitalWrite(vera, HIGH);// if love is equal LOW, turn the pin vera HIGH (give it 5v)
  }else{
    digitalWrite(razel, LOW);// else set pin vera to low or zero volt
  }
}