번호	제목
7003	Checker Board
7004	Poly-polygonal Numbers
7005	Stacking Cubes
7006	To bet, or not to bet
7007	BSP Trees
7008	Double Trouble
7009	Relief Supplies
7010	Snowball Fight
7011	Weather Forecasting
7012	Building Snowmen
7013	Walking on Thin Ice
7014	Snow Cones
7015	Millennium
7016	Recurring Decimals
7017	Biased Dice
7018	Railway Connection
7019	Chain-Confined Path
7020	Generic Poker
7021	Patisserie ACM
7024	Letter Game