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곱셈: 2 x 21X3

1

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

2

		2	1
		5	2
		4	2
1	0	5	0
1	0	9	2

3

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

4

		6	0
		4	4
	2	4	0
2	4	0	0
2	6	4	0

5

		4	2
		5	0
			0
2	1	0	0
2	1	0	0

6

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

7

		9	8
		2	2
	1	9	6
1	9	6	0
2	1	5	6

8

		3	4
		8	8
	2	7	2
2	7	2	0
2	9	9	2

9

		4	5
		2	0
			0
	9	0	0
	9	0	0

10

		3	6
		1	5
	1	8	0
	3	6	0
	5	4	0

11

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

12

		7	3
		3	0
			0
2	1	9	0
2	1	9	0

13

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

14

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

15

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

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