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곱셈: 2 x 21X3

1

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

2

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

3

		4	6
		2	0
			0
	9	2	0
	9	2	0

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		5	0
		1	0
			0
	5	0	0
	5	0	0

12

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

13

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

14

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

15

		5	5
		6	6
	3	3	0
3	3	0	0
3	6	3	0

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