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곱셈: 2 x 23X7

1

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

2

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

3

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

4

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

5

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

6

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

7

		8	4
		1	0
			0
	8	4	0
	8	4	0

8

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

9

		6	2
		6	0
			0
3	7	2	0
3	7	2	0

10

		4	1
		9	1
		4	1
3	6	9	0
3	7	3	1

11

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

12

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

13

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

14

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

15

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

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