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곱셈: 2 x 23X9

1

		3	9
		1	7
	2	7	3
	3	9	0
	6	6	3

2

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

3

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

4

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

5

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

6

		8	8
		4	7
	6	1	6
3	5	2	0
4	1	3	6

7

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

8

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

9

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

10

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

11

		5	3
		1	7
	3	7	1
	5	3	0
	9	0	1

12

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

13

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

14

		5	7
		3	6
	3	4	2
1	7	1	0
2	0	5	2

15

		4	3
		6	3
	1	2	9
2	5	8	0
2	7	0	9

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