매주1장	[문제] 1-1 1-2 2-1 2-2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 16 17 18 19 20 21 22 [해설] 1-1 1-2 2-1 2-2 3 4 5 6 7 8 9 10 11 12 13 14-1 14-2 15 16 17 18 19 20 21 22