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곱셈: 2 x 21X0

1

		1	0
		3	0
			0
	3	0	0
	3	0	0

2

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

3

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

4

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

5

		1	5
		4	6
		9	0
	6	0	0
	6	9	0

6

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

7

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

8

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

9

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

10

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

11

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

12

		6	2
		2	0
			0
1	2	4	0
1	2	4	0

13

		8	7
		5	0
			0
4	3	5	0
4	3	5	0

14

		2	0
		4	2
		4	0
	8	0	0
	8	4	0

15

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

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