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곱셈: 2 x 1

	4	7
		7
3	2	9

		4	5
			2
		9	0

		6	0
			1
		6	0

	7	2
		4
2	8	8

	2	2
		5
1	1	0

	3	6
		8
2	8	8

		2	6
			1
		2	6

	3	6
		3
1	0	8

		1	1
			4
		4	4

	3	1
		8
2	4	8

	4	7
		9
4	2	3

	3	7
		7
2	5	9

		2	8
			1
		2	8

	4	0
		8
3	2	0

	6	3
		2
1	2	6