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곱셈: 2 x 21X8

1

		1	8
		6	1
		1	8
1	0	8	0
1	0	9	8

2

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

3

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

4

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

5

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

6

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

7

		9	8
		6	0
			0
5	8	8	0
5	8	8	0

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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