//////////////////////////////////////////////////
int led[]={22,23,24,25,26,27};
int jmlLed=6;
int jeda=50;



/////////////////////////////////////////////////
void bolakbalik(){
    for (int ini= 0; ini< jmlLed;ini++){
    digitalWrite(led[ini], HIGH);
    delay(jeda);
    digitalWrite(led[ini], LOW);
    delay(jeda);
  }


  for (int ini= jmlLed; ini>= 0;ini--){

    
    if(int x=6){
      for (int y=5;y >=0;y--){
            digitalWrite(led[ini], HIGH);
            delay(jeda);
            digitalWrite(led[ini], LOW);
            delay(jeda);
      }
    }else{
    digitalWrite(led[ini], HIGH);
    delay(jeda);
    digitalWrite(led[ini], LOW);
    delay(jeda);
    }
  }
}
/////////////////////////////////////////////////

void setup() {
  // put your setup code here, to run once:
  for (int ini= 0; ini< jmlLed;ini++){
    pinMode(led[ini], OUTPUT);
  }
}

void loop() {
 // put your main code here, to run repeatedly:
  bolakbalik();
}