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곱셈: 3 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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