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곱셈: 2 x 21X8

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

		2	6
		2	0
			0
	5	2	0
	5	2	0

9

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

10

		6	5
		6	3
	1	9	5
3	9	0	0
4	0	9	5

11

		5	0
		4	5
	2	5	0
2	0	0	0
2	2	5	0

12

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

13

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

14

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

15

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

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