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곱셈 2자리 X 1자리

	1	5
		7
1	0	5

		1	2
			7
		8	4

	4	3
		5
2	1	5

		2	4
			4
		9	6

	6	5
		6
3	9	0

		1	4
			4
		5	6

	8	8
		4
3	5	2

	5	3
		6
3	1	8

		1	2
			1
		1	2

		2	1
			4
		8	4

	4	1
		9
3	6	9

		2	7
			1
		2	7

	6	2
		4
2	4	8

		1	1
			1
		1	1

	2	7
		6
1	6	2