int LED=10;
int LED1=7;
int LED2=4;
int LED3=1;
void setup() {
  pinMode(LED,OUTPUT);
}

void loop() {
  digitalWrite(LED,HIGH);
  delay(100);
  digitalWrite(LED,LOW);
  delay(100);
  digitalWrite(LED1,HIGH);
  delay(100);
  digitalWrite(LED1,LOW);
  delay(100);
  digitalWrite(LED2,HIGH);
  delay(100);
  digitalWrite(LED2,LOW);
  delay(100);
  digitalWrite(LED3,HIGH);
  delay(100);
  digitalWrite(LED3,LOW);
  delay(100);
  
}