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곱셈: 2 x 23X7

1

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

2

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

3

		6	7
		1	1
		6	7
	6	7	0
	7	3	7

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

		1	0
		5	0
			0
	5	0	0
	5	0	0

15

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

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