int hidup = 1, mati = 0, tw= 50;

void setup() {
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);

}
void matikan(){
  digitalWrite(5,mati);
  digitalWrite(6,mati);
  digitalWrite(7,mati);
  digitalWrite(8,mati);
  digitalWrite(9,mati);
  digitalWrite(10,mati);
  digitalWrite(11,mati);
  digitalWrite(12,mati);
}
void kebawah() {
 matikan();
 digitalWrite(12,hidup);
 delay(tw);
 matikan();
 digitalWrite(11,hidup);
 delay(tw);
 matikan();
 digitalWrite(10, hidup);
 delay(tw);
 matikan();
 digitalWrite(9, hidup);
 delay(tw);
 matikan();
 digitalWrite(8, hidup);
 delay(tw);
 matikan();
 digitalWrite(7, hidup);
 delay(tw);
 matikan();
 digitalWrite(6, hidup);
 delay(tw);
 matikan();
 digitalWrite(5, hidup);
 delay(tw);
}

void keatas(){
 matikan();
 digitalWrite(5, hidup);
 delay(tw);
 matikan();
 digitalWrite(6, hidup);
 delay(tw);
 matikan();
 digitalWrite(7, hidup);
 delay(tw);
 matikan();
 digitalWrite(8, hidup);
 delay(tw);
 matikan();
 digitalWrite(9, hidup);
 delay(tw);
 matikan();
 digitalWrite(10, hidup);
 delay(tw);
 matikan();
 digitalWrite(11, hidup);
 delay(tw);
 matikan();
 digitalWrite(12,hidup);
 delay(tw);
}

int tb1, tb2, tb3;
void rem(){
    matikan();
    digitalWrite(5, hidup);
    digitalWrite(12, hidup);
    delay(tw);
    matikan();
    digitalWrite(6, hidup);
    digitalWrite(11, hidup);
    delay(tw);
    matikan();
    digitalWrite (7, hidup);
    digitalWrite(10, hidup);
    delay(tw);
    matikan();
    digitalWrite (8, hidup);
    digitalWrite(9, hidup);
    delay(tw);
  }


void loop() {
  tb1-digitalRead(4);
  if(tb1==0){keatas();} 

  tb1-digitalRead(2);
  if(tb1==0){kebawah();} 

  tb1=digitalRead(3);
  if(tb1==0){rem();}


}