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곱셈: 2 x 1

	2	8
		9
2	5	2

	2	0
		6
1	2	0

		2	6
			1
		2	6

	1	8
		7
1	2	6

		3	8
			2
		7	6

	3	5
		8
2	8	0

	2	3
		7
1	6	1

	3	9
		3
1	1	7

		1	0
			7
		7	0

		2	6
			2
		5	2

		3	0
			1
		3	0

	5	3
		4
2	1	2

		1	4
			3
		4	2

	9	1
		9
8	1	9

		2	3
			3
		6	9