Shape 1

#include <Servo.h>;

void setup() {
  Servo servoLeft;
  Servo servoRight;

  servoLeft.attach(12);
  servoRight.attach(11);

  //straight line

  servoLeft.writeMicroseconds(1700);
  servoRight.writeMicroseconds(1380);

  delay(3000);

  //turn 90 left

  servoLeft.writeMicroseconds(1300);
  servoRight.writeMicroseconds(1300);

  delay(500);

  //arc back to beginning

  servoLeft.writeMicroseconds(1550);
  servoRight.writeMicroseconds(1300);

  delay(6000);

  //stop

  servoLeft.detach();
  servoRight.detach();

}

void loop() {
  // put your main code here, to run repeatedly:

}