const int Pb1 = 4;
  const int Pb2 = 2;
  const int Led1 = 16;
  const int Led2 = 17;
  const int Led3 = 18;
  const int Led4 = 19;
  const int Led5 = 21;

int StatPb1 = 0;
int StatPb2 = 0;



void setup() {
  pinMode(Pb1, INPUT);
  pinMode(Pb2, INPUT);
  pinMode(Led1, OUTPUT);
  pinMode(Led2, OUTPUT);
  pinMode(Led3, OUTPUT);
  pinMode(Led4, OUTPUT);
  pinMode(Led5, OUTPUT);
}

void loop() {
  StatPb1 = digitalRead (Pb1);
  StatPb2 = digitalRead (Pb2);
  
if (StatPb1 == HIGH)
{ 
  digitalWrite(Led1, HIGH);
  delay(1000);
  digitalWrite(Led2, HIGH);
  delay(1000);
  digitalWrite(Led3, HIGH);
  delay(1000);
  digitalWrite(Led4, HIGH);
  delay(1000);
  digitalWrite(Led5, HIGH);
  delay(1000);
}

if (StatPb2 == HIGH)
{ 
  delay(1000);
  digitalWrite(Led5, LOW);
  delay(1000);
  digitalWrite(Led4, LOW);
  delay(1000);
  digitalWrite(Led3, LOW);
  delay(1000);
  digitalWrite(Led2, LOW);
  delay(1000);
  digitalWrite(Led1, LOW);

}


}