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곱셈: 2 x 23X9

1

		3	9
		4	8
	3	1	2
1	5	6	0
1	8	7	2

2

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

3

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

4

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

5

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

6

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

7

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

8

		3	9
		3	1
		3	9
1	1	7	0
1	2	0	9

9

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

10

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

11

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

12

		5	7
		6	5
	2	8	5
3	4	2	0
3	7	0	5

13

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

14

		1	4
		7	4
		5	6
	9	8	0
1	0	3	6

15

		6	0
		7	4
	2	4	0
4	2	0	0
4	4	4	0

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