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곱셈: 2 x 21X3

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

		5	5
		5	2
	1	1	0
2	7	5	0
2	8	6	0

9

		2	0
		4	7
	1	4	0
	8	0	0
	9	4	0

10

		1	1
		4	4
		4	4
	4	4	0
	4	8	4

11

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

12

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

13

		2	6
		3	0
			0
	7	8	0
	7	8	0

14

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

15

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

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