Cheat Sheet to Floor Numbers of Blue High Tower

Our group can be found on the 11th floor of the blue high-tower. As part of the on-going renovation, traditional (decimal) floor numbers (Stockwerknummern) have been removed and replaced with binary floor numbers. While certainly a joy to most computer scientists, we are currently looking for a group of first-semester students which has gone missing somewhere in the high tower. Also, one secretary still has to report back to work after having been sent to floor 0011 on April 1st to pick up a package. To help the non-computer-scientist, below the photograph please find a cheat sheet of binary floor numbers translated to good old decimal.

Floor # (Decimal) Label (Binary)
Ground floor (Erdgeschoss) 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
10 1010
11 1011
12 1100