#include<Servo.h>

Servo a;
Servo b;

const int servobo = 11;
const int servoco = 10;
const int LED = 13;
const int Green = 12;

void setup(){
a.attach(servobo);
b.attach(servoco);
pinMode(LED, OUTPUT);
pinMode(Green, OUTPUT);
}

void loop(){
delay(1000);
digitalWrite(LED, LOW);
digitalWrite(Green, HIGH);
a.write(0);
b.write(0);
delay(1000);
a.write(90);
digitalWrite(LED, HIGH);
digitalWrite(Green, LOW);
b.write(90);
delay(1000);
}