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곱셈: 2 x 23X7

1

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

2

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

3

		1	7
		1	1
		1	7
	1	7	0
	1	8	7

4

		6	1
		6	0
			0
3	6	6	0
3	6	6	0

5

		2	9
		9	4
	1	1	6
2	6	1	0
2	7	2	6

6

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

7

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

8

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

9

		7	5
		8	9
	6	7	5
6	0	0	0
6	6	7	5

10

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

11

		1	7
		4	0
			0
	6	8	0
	6	8	0

12

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

13

		1	8
		8	5
		9	0
1	4	4	0
1	5	3	0

14

		1	3
		5	0
			0
	6	5	0
	6	5	0

15

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

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