//Hady mostafa abdelhady
int i = 0;
void setup() {
  // put your setup code here, to run 
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
}
void loop() {
  // put your main code here, to run repeatedly:
  for(i;i<300;i++)
{
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
delay(50);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
delay(50);
}
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
delay(250);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
delay(250);
}