How do you do the puzzle after you go through the black hole on poptropica?

the chart is set up with four squares in each row like this:

1,2,3,4,

5,6,7,8,

9,10,11,12,

13,14,15,16,

17,18,19,20

Click on these numbers in order 5,6,7,8,1o,11,13,14,15,16 to get past the door. Another option is before you click on the princess (which is not the real princess) you just click on the door that says enter behind the fake princess.