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곱셈: 2 x 21X8

1

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

2

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

3

		2	9
		3	2
		5	8
	8	7	0
	9	2	8

4

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

5

		1	6
		7	5
		8	0
1	1	2	0
1	2	0	0

6

		3	2
		1	1
		3	2
	3	2	0
	3	5	2

7

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

8

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

9

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

10

		1	5
		2	6
		9	0
	3	0	0
	3	9	0

11

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

12

		1	9
		1	1
		1	9
	1	9	0
	2	0	9

13

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

14

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

15

		3	5
		2	2
		7	0
	7	0	0
	7	7	0

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