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곱셈: 3 x 21X9

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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