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뺄셈 2자리 - 1자리

		2	2
			9
		1	3

		5	4
			8
		4	6

		2	5
			4
		2	1

		4	1
			5
		3	6

		1	1
			1
		1	0

		3	5
			4
		3	1

		2	3
			2
		2	1

		6	1
			3
		5	8

		4	7
			5
		4	2

		6	6
			1
		6	5

		2	1
			1
		2	0

		9	1
			1
		9	0

		1	7
			6
		1	1

		6	1
			8
		5	3

		1	4
			3
		1	1