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뺄셈 2자리 - 1자리

		8	0
			1
		7	9

		5	3
			3
		5	0

		6	0
			4
		5	6

		2	4
			5
		1	9

		9	6
			5
		9	1

		4	0
			2
		3	8

		6	8
			2
		6	6

		8	7
			2
		8	5

		4	6
			6
		4	0

		8	4
			3
		8	1

		2	0
			6
		1	4

		3	1
			8
		2	3

		3	5
			9
		2	6

		3	1
			9
		2	2

		1	1
			2
			9