Solution

153397

Problem / game
First name
Yasmin El-Khamlichi
School
Bancroft's Prep School
Age
10

Another pattern I realised is that every two shacks' roof and floor numbers are double, so if you label the sequence 1, 2, 3, 4 etc, 1 and 3, 2 and 4 etc will have double roof and floor numbers for example, if 1's roof number is 10 and its floor number is 8 then 3's roof number will be 20 and its floor number will be 16.