bin for arduino 1234567890

int led_red = 2;
int led_yellow = 3;
int led_green = 4;
void setup() {
pinMode (led_red, OUTPUT);
pinMode (led_yellow, OUTPUT);
pinMode (led_green, OUTPUT);
}
void loop() {
  digitalWrite(led_red,HIGH);
  delay (10000);
   digitalWrite(led_yellow,HIGH);
  delay (2000);
 digitalWrite(led_green,HIGH);
   digitalWrite(led_red,LOW);
  digitalWrite(led_yellow,LOW);
  delay (10000);
  digitalWrite(led_yellow,HIGH);
  digitalWrite(led_green,LOW);
  delay (2000);
  digitalWrite(led_yellow,LOW);
 }