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곱셈: 4 x 23X7

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		4	4	1	0
				1	1
		4	4	1	0
	4	4	1	0	0
	4	8	5	1	0

11

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

12

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

13

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

14

		3	3	3	0
				3	9
	2	9	9	7	0
	9	9	9	0	0
1	2	9	8	7	0

15

		4	5	8	0
				5	0
					0
2	2	9	0	0	0
2	2	9	0	0	0

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