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곱셈: 3 x 21X3

1

		1	3	1
			1	0
				0
	1	3	1	0
	1	3	1	0

2

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

3

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

4

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

5

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

6

		9	1	6
			6	5
	4	5	8	0
5	4	9	6	0
5	9	5	4	0

7

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

8

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

9

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

10

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

11

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

12

		2	7	2
			2	0
				0
	5	4	4	0
	5	4	4	0

13

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

14

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

15

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

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