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곱셈: 2 x 13X0

	3	0
		7
2	1	0

		2	2
			4
		8	8

		2	0
			1
		2	0

	6	0
		3
1	8	0

		2	6
			1
		2	6

		8	7
			1
		8	7

	7	6
		2
1	5	2

	2	6
		7
1	8	2

	4	4
		5
2	2	0

	9	6
		2
1	9	2

	5	3
		8
4	2	4

		1	9
			1
		1	9

	3	2
		8
2	5	6

	4	5
		5
2	2	5

	6	1
		2
1	2	2