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곱셈: 2 x 23X5

1

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

2

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

3

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

4

		3	7
		1	1
		3	7
	3	7	0
	4	0	7

5

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

6

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

7

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

8

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

9

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

10

		6	3
		9	0
			0
5	6	7	0
5	6	7	0

11

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

12

		2	9
		3	2
		5	8
	8	7	0
	9	2	8

13

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

14

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

15

		5	0
		2	3
	1	5	0
1	0	0	0
1	1	5	0

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