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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		4	2
		7	0
			0
2	9	4	0
2	9	4	0

11

		1	0
		6	5
		5	0
	6	0	0
	6	5	0

12

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

13

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

14

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

15

		7	5
		6	9
	6	7	5
4	5	0	0
5	1	7	5

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