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곱셈: 2 x 14X7

	4	7
		6
2	8	2

	2	8
		6
1	6	8

		3	8
			1
		3	8

	2	7
		4
1	0	8

	6	2
		2
1	2	4

		2	3
			2
		4	6

		1	3
			7
		9	1

	8	2
		6
4	9	2

	8	2
		7
5	7	4

	2	4
		7
1	6	8

		9	3
			1
		9	3

	7	0
		8
5	6	0

	8	6
		2
1	7	2

		4	0
			1
		4	0

	4	7
		6
2	8	2