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곱셈: 2 x 28X9

1

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

2

		9	5
		7	9
	8	5	5
6	6	5	0
7	5	0	5

3

		1	0
		2	2
		2	0
	2	0	0
	2	2	0

4

		1	0
		1	7
		7	0
	1	0	0
	1	7	0

5

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

6

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

7

		5	3
		7	0
			0
3	7	1	0
3	7	1	0

8

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

9

		7	2
		8	7
	5	0	4
5	7	6	0
6	2	6	4

10

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

11

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

12

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

13

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

14

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

15

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

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