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곱셈: 2 x 23X9

1

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

2

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

3

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

4

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

5

		1	0
		2	2
		2	0
	2	0	0
	2	2	0

6

		9	3
		3	9
	8	3	7
2	7	9	0
3	6	2	7

7

		4	2
		8	2
		8	4
3	3	6	0
3	4	4	4

8

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

9

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

10

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

11

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

12

		2	5
		2	3
		7	5
	5	0	0
	5	7	5

13

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

14

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

15

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

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