#include <Servo.h>

Servo s1;
Servo s2;
Servo s3;
Servo s4;

void setup() {
  s1.attach(11);
  s2.attach(10);
  s3.attach(9);
  s4.attach(6);

}

void loop() {
  s1();
  s2();
  s3();
  s4();

}



void s1() {
  s1.write(90);

}

void s2() {
  s2.write(90);
  
}

void s3() {
  s3.write(90);

}

void s4() {
  s4.write(90);
  
}