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곱셈: 3 x 21X3

1

		1	3	7
			6	0
				0
	8	2	2	0
	8	2	2	0

2

		3	3	6
			6	3
	1	0	0	8
2	0	1	6	0
2	1	1	6	8

3

		3	6	0
			2	4
	1	4	4	0
	7	2	0	0
	8	6	4	0

4

		1	9	3
			9	7
	1	3	5	1
1	7	3	7	0
1	8	7	2	1

5

		4	4	5
			1	2
		8	9	0
	4	4	5	0
	5	3	4	0

6

		1	1	7
			4	4
		4	6	8
	4	6	8	0
	5	1	4	8

7

		5	7	0
			1	5
	2	8	5	0
	5	7	0	0
	8	5	5	0

8

		2	1	4
			9	2
		4	2	8
1	9	2	6	0
1	9	6	8	8

9

		2	1	6
			2	8
	1	7	2	8
	4	3	2	0
	6	0	4	8

10

		3	2	1
			5	7
	2	2	4	7
1	6	0	5	0
1	8	2	9	7

11

		9	2	1
			2	3
	2	7	6	3
1	8	4	2	0
2	1	1	8	3

12

		8	4	5
			7	1
		8	4	5
5	9	1	5	0
5	9	9	9	5

13

		8	9	3
			9	1
		8	9	3
8	0	3	7	0
8	1	2	6	3

14

		5	5	1
			2	2
	1	1	0	2
1	1	0	2	0
1	2	1	2	2

15

		6	8	6
			3	3
	2	0	5	8
2	0	5	8	0
2	2	6	3	8

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