const int LED1 = 6;
const int LED2 = 7;
const int LED3 = 8;
const int LED4 = 9;
const int LED5 = 10;
const int LED6 = 11;
const int LED7 = 12;
const int LED8 = 13;
const int button1 = 2;
const int button2 = 5;
const int buzz = 3;



void setup() {
  // put your setup code here, to run once:
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(LED4, OUTPUT);
pinMode(LED5, OUTPUT);
pinMode(LED6, OUTPUT);
pinMode(LED7, OUTPUT);
pinMode(LED8, OUTPUT);
pinMode (buzz,OUTPUT);
pinMode(button1, INPUT);
pinMode(button2, INPUT);
digitalWrite(button1, HIGH);
digitalWrite(button2, HIGH);
}

void running(){
  digitalWrite(LED1, HIGH);
  digitalWrite(LED8, HIGH);
  delay(50);
  digitalWrite(LED1, LOW);
  digitalWrite(LED8, LOW);
  delay(50);
  digitalWrite(LED2, HIGH);
  digitalWrite(LED7, HIGH);
  delay(50);
  digitalWrite(LED2, LOW);
  digitalWrite(LED7, LOW);
  delay(50);
  digitalWrite(LED3, HIGH);
  digitalWrite(LED6, HIGH);
  delay(50);
  digitalWrite(LED3, LOW);
  digitalWrite(LED6, LOW);
  delay(50);
  digitalWrite(LED4, HIGH);
  digitalWrite(LED5, HIGH);
  delay(50);
  digitalWrite(LED4, LOW);
  digitalWrite(LED5, LOW);
  delay(50);
  digitalWrite(LED1, HIGH);
  delay(50);
  digitalWrite(LED2, HIGH);
  delay(50);
  digitalWrite(LED3, HIGH);
  delay(50);
  digitalWrite(LED4, HIGH);
  delay(50);
  digitalWrite(LED5, HIGH);
  delay(50);
  digitalWrite(LED6, HIGH);
  delay(50);
  digitalWrite(LED7, HIGH);
  delay(50);
  digitalWrite(LED8, HIGH);
  delay(50);
  digitalWrite(LED8, LOW);
  delay(50);
  digitalWrite(LED7, LOW);
  delay(50);
  digitalWrite(LED6, LOW);
  delay(50);
  digitalWrite(LED5, LOW);
  delay(50);
  digitalWrite(LED4, LOW);
  delay(50);
  digitalWrite(LED3, LOW);
  delay(50);
  digitalWrite(LED2, LOW);
  delay(50);
  digitalWrite(LED1, LOW);
  delay(50);
}

void led24(){
  digitalWrite(LED4, HIGH);
  digitalWrite(LED5, HIGH);

}

void loop() {
  // put your main code here, to run repeatedly:
if(digitalRead(button1) == LOW) {
  running();
}else if(digitalRead(button1) == LOW){
  digitalWrite(LED1, LOW);
  digitalWrite(LED2, LOW);
  digitalWrite(LED3, LOW);
  digitalWrite(LED4, LOW);
  digitalWrite(LED5, LOW);
  digitalWrite(LED6, LOW);
  digitalWrite(LED7, LOW);
  digitalWrite(LED8, LOW);
}

if(digitalRead(button2) == LOW) {
  led24();
}else if(digitalRead(button2) == HIGH){
  digitalWrite(buzz, HIGH);
  delay (100);
  digitalWrite(buzz, LOW);
  delay (100);
}
}