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곱셈: 2 x 23X9

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		7	4
		4	6
	4	4	4
2	9	6	0
3	4	0	4

12

		1	0
		1	0
			0
	1	0	0
	1	0	0

13

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

14

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

15

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

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