int led11=11;
int led12=12;
int led13=13;
void setup() {
  pinMode(led11, OUTPUT);
  pinMode(led12, OUTPUT);
  pinMode(led13, OUTPUT);
  // put your setup code here, to run once:
}

void loop() {
  digitalWrite(led11, HIGH);
  delay(5000);
  digitalWrite(led12, HIGH);
  delay(2000);
  digitalWrite(led11, LOW);
  digitalWrite(led12, LOW);
  digitalWrite(led13, HIGH);
  delay(5000);
  digitalWrite(led13, LOW);
  digitalWrite(led12, HIGH);
  delay(2000);
  digitalWrite(led12, LOW);
  // put your main code here, to run repeatedly:
}