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곱셈 2자리 X 1자리

	3	7
		8
2	9	6

	4	1
		7
2	8	7

	5	2
		6
3	1	2

	6	3
		7
4	4	1

	5	7
		8
4	5	6

	6	4
		8
5	1	2

	6	3
		7
4	4	1

		2	4
			1
		2	4

	7	2
		8
5	7	6

	8	2
		5
4	1	0

	6	4
		2
1	2	8

	5	7
		3
1	7	1

	2	0
		5
1	0	0

		4	8
			1
		4	8

		1	3
			1
		1	3