Data Set 1
The floor may not be tiled.

Data Set 2
The floor may be tiled.
AAAABD
CCEGBD
CCEGBD
FFEGBD
FFEGII
HHHHII

Data Set 3
The floor may be tiled.
AAAABC
DDDDBC
EEEEBC
FFFFBC
GGGGII
HHHHII

Data Set 4
The floor may not be tiled.

Data Set 5
The floor may not be tiled.

Data Set 6
The floor may be tiled.
ABBBEE
AAABEE
CCCCFH
IIIFFH
IGGFHH
GGDDDD

End of Output