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곱셈: 2 x 21X2

1

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

2

		1	3
		9	1
		1	3
1	1	7	0
1	1	8	3

3

		3	5
		2	0
			0
	7	0	0
	7	0	0

4

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

5

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

6

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

7

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

8

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

9

		4	6
		2	2
		9	2
	9	2	0
1	0	1	2

10

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

11

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

12

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

13

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

14

		6	2
		1	0
			0
	6	2	0
	6	2	0

15

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

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