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곱셈: 2 x 21X3

1

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

2

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

3

		4	0
		9	9
	3	6	0
3	6	0	0
3	9	6	0

4

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

5

		9	1
		1	2
	1	8	2
	9	1	0
1	0	9	2

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

		3	0
		6	1
		3	0
1	8	0	0
1	8	3	0

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