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곱셈: 2 x 23X5

1

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

2

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

3

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

4

		8	3
		4	0
			0
3	3	2	0
3	3	2	0

5

		9	3
		4	0
			0
3	7	2	0
3	7	2	0

6

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

7

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

8

		3	2
		3	3
		9	6
	9	6	0
1	0	5	6

9

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

10

		2	1
		4	0
			0
	8	4	0
	8	4	0

11

		6	5
		7	3
	1	9	5
4	5	5	0
4	7	4	5

12

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

13

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

14

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

15

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

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