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곱셈: 2 x 23X7

1

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

2

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

3

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

4

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

5

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

6

		3	3
		5	0
			0
1	6	5	0
1	6	5	0

7

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

8

		2	9
		1	0
			0
	2	9	0
	2	9	0

9

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

10

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

11

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

12

		3	1
		2	0
			0
	6	2	0
	6	2	0

13

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

14

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

15

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

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