Google Code Jam 2014 Round 2

	#	제목
A1	12234	Data Packing (Small)
A2	12235	Data Packing (Large)
B1	12236	Up and Down (Small)
B2	12237	Up and Down (Large)
C1	12238	Don't Break The Nile (Small)
C2	12239	Don't Break The Nile (Large)
D1	12240	Trie Sharding (Small)
D2	12241	Trie Sharding (Large)