int leds []={3, 4, 5, 6, 7, 8};
int tiempo1=3000;
int tiempo2=200;
int n;

void setup() {
for(n=0;n<6;n++){
  pinMode(leds[n], OUTPUT);
}
}
void loop() {
digitalWrite(leds[5], HIGH);
digitalWrite(leds[0], HIGH);
delay(3000);

for(1;n<11;n++){
  digitalWrite(leds[4], HIGH);
  digitalWrite(leds[5], LOW);
  delay(200);
}
for(n=1;n<11;n++){
  digitalWrite(leds[4], LOW);
  digitalWrite(leds[3], HIGH);
  delay(200);
}
for(n=1;n<11;n++){
  digitalWrite(leds[0], LOW);
  digitalWrite(leds[2], HIGH);
  delay(200);
}
for(n=1;n<11;n++){
  digitalWrite(leds[2], LOW);
  digitalWrite(leds[1], HIGH);
  delay(200);
}
for(n=1;n<11;n++){
  digitalWrite(leds[2], LOW);
  digitalWrite(leds[1], HIGH);
}

digitalWrite(leds[1], LOW);
digitalWrite(leds[3], LOW);

}