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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

		3	3
		9	1
		3	3
2	9	7	0
3	0	0	3

10

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

11

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

12

		2	7
		6	2
		5	4
1	6	2	0
1	6	7	4

13

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

14

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

15

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

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