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곱셈: 2 x 21X3

1

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

2

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

3

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

4

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

5

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

6

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

7

		3	1
		2	1
		3	1
	6	2	0
	6	5	1

8

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

9

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

10

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

11

		5	9
		9	5
	2	9	5
5	3	1	0
5	6	0	5

12

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

13

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

14

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

15

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

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