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곱셈: 2 x 21X3

1

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

2

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

3

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

4

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

5

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

6

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

7

		1	0
		9	5
		5	0
	9	0	0
	9	5	0

8

		3	0
		3	1
		3	0
	9	0	0
	9	3	0

9

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

10

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

11

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

12

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

13

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

14

		1	1
		2	7
		7	7
	2	2	0
	2	9	7

15

		3	2
		3	0
			0
	9	6	0
	9	6	0

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