int led[] = {10, 11};
int ridha = 0;
void setup() {
  // put your setup code here, to run once:
for(int i=0;i<2;i++){
  pinMode(led[i], OUTPUT);
}
pinMode(6, INPUT_PULLUP);
pinMode(7, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
int mulai = digitalRead(6);
int stop = digitalRead(7);
if(mulai == LOW){
   ridha = 1;
}
if(stop == LOW){
  ridha = 0;
}
if(ridha == 1){
  digitalWrite(led[0], LOW);
  delay(200);
  digitalWrite(led[0], HIGH);
  digitalWrite(led[1], LOW);
  delay(200);
  digitalWrite(led[1], HIGH);
  digitalWrite(led[0], LOW);
  }
else {
  for(int i=0;i<2;i++){
    digitalWrite(led[i], HIGH);
  }
}
}