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곱셈: 2 x 21X2

1

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

2

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

3

		1	0
		7	3
		3	0
	7	0	0
	7	3	0

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		6	0
		6	5
	3	0	0
3	6	0	0
3	9	0	0

12

		5	6
		1	0
			0
	5	6	0
	5	6	0

13

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

14

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

15

		3	4
		1	9
	3	0	6
	3	4	0
	6	4	6

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