Google Code Jam 2011 Round 2

	#	제목
A1	12483	Airport Walkways (Small)
A2	12484	Airport Walkways (Large)
B1	12485	Spinning Blade (Small)
B2	12486	Spinning Blade (Large)
C1	12487	Expensive Dinner (Small)
C2	12488	Expensive Dinner (Large)
D1	12489	A.I. War (Small)
D2	12490	A.I. War (Large)