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곱셈: 3 x 21X5

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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