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곱셈: 2 x 21X2

1

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

2

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

3

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

4

		5	3
		1	1
		5	3
	5	3	0
	5	8	3

5

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

6

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

7

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

8

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

9

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

10

		3	5
		4	4
	1	4	0
1	4	0	0
1	5	4	0

11

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

12

		6	3
		5	3
	1	8	9
3	1	5	0
3	3	3	9

13

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

14

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

15

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

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