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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		2	3
		3	0
			0
	6	9	0
	6	9	0

11

		2	0
		3	3
		6	0
	6	0	0
	6	6	0

12

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

13

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

14

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

15

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

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