int ledky[]={2,3,4,5,6,7,8,9,10,11};


void setup() {


}

void loop() {
for(int hore = 10; hore >= 0;hore--){
digitalWrite(ledky[hore], HIGH);
delay(100);
}
for (int dole = 0; dole < 10;dole++){
digitalWrite(ledky[dole],LOW);
delay(100);
}
}