int raudona =3;
int melyna =5;

void setup() 
{
pinMode(3, OUTPUT);
pinMode(5, OUTPUT);

}
void mirksek(int laikas)
{
digitalWrite(raudona,HIGH);
digitalWrite(melyna,LOW);
delay(laikas);
digitalWrite(raudona, LOW);
digitalWrite(melyna,HIGH);
delay(laikas);

}
void loop() {

int i = 100;
mirksek(500);
mirksek(i);
i = i + 1;

}