void setup() {
  // put your setup code here, to run once:
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(2, INPUT);
}
// 5 output led dengan pushbutton
void clearled() {
  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, LOW);
  digitalWrite(8, LOW);
}
void ledOn(int cld) {
  if (cld == 1) {
    digitalWrite(12, HIGH);
  } else if (cld == 2) {
    digitalWrite(11, HIGH);
  } else if (cld == 3) {
    digitalWrite(10, HIGH);
  } else if (cld == 4) {
    digitalWrite(9, HIGH);
  } else if (cld == 5) {
    digitalWrite(8, HIGH);
  } else if (cld == 6) {
    digitalWrite(8, LOW);
  } else if (cld == 7) {
    digitalWrite(8, HIGH);
  } else if (cld == 8) {
    digitalWrite(9, HIGH);
  } else if (cld == 9) {
    digitalWrite(10, HIGH);
  } else if (cld == 10) {
    digitalWrite(11, HIGH);
  } else if (cld == 11) {
    digitalWrite(12, HIGH);
  } else if (cld == 12) {
    digitalWrite(12, LOW);
  }
}

int cstate = 1;
void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(2) == HIGH) {
    delay(200);
    clearled();
    ledOn(cstate);
    cstate++;
    if (cstate > 12) {
      cstate = 1;
    }
  }
}