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곱셈: 3 x 28X7

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

		1	0	2
			9	9
		9	1	8
	9	1	8	0
1	0	0	9	8

10

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

11

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

12

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

13

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

14

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

15

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

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