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곱셈: 2 x 21X0

1

		1	0
		3	0
			0
	3	0	0
	3	0	0

2

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

3

		4	0
		5	6
	2	4	0
2	0	0	0
2	2	4	0

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

		3	4
		1	3
	1	0	2
	3	4	0
	4	4	2

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