Guess the next persons ID by entering which range its in, then the next person must say if its true or false then enter a range for the next person.
I guess, 1000-2000
Ranges:
100-1000
1000-2000
2000-3000
3000-4000
4000-5000
5000-6000
6000-7000
7000-8000
8000-9000
9000-10000
10000-11000