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곱셈: 2 x 23X7

1

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

2

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

3

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

4

		9	5
		8	5
	4	7	5
7	6	0	0
8	0	7	5

5

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

6

		9	1
		5	5
	4	5	5
4	5	5	0
5	0	0	5

7

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

8

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

9

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

10

		1	4
		3	1
		1	4
	4	2	0
	4	3	4

11

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

12

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

13

		9	2
		5	7
	6	4	4
4	6	0	0
5	2	4	4

14

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

15

		1	9
		2	0
			0
	3	8	0
	3	8	0

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