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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

		8	0
		1	1
		8	0
	8	0	0
	8	8	0

8

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

9

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

10

		1	1
		1	2
		2	2
	1	1	0
	1	3	2

11

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

12

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

13

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

14

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

15

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

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