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곱셈: 2 x 21X2

1

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

2

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

3

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

4

		1	3
		7	5
		6	5
	9	1	0
	9	7	5

5

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

6

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

7

		3	3
		1	0
			0
	3	3	0
	3	3	0

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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