What is the answer to level 53 in the never ending level game?

Click the triangle of 1, and the wheel will turn. When you find another triangle at the hole, click the triangle of 2. When you find another triangle at the hole again, click the triangle of 3. When you find the last triangle at the hole, click the triangle of 4. At the hole, you will find the exit button, click on it. However, the 4th triangle is really hard to find!