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곱셈: 2 x 21X2

1

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

2

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

3

		3	2
		5	8
	2	5	6
1	6	0	0
1	8	5	6

4

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

5

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

6

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

7

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

8

		6	1
		1	7
	4	2	7
	6	1	0
1	0	3	7

9

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

10

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

11

		9	5
		1	0
			0
	9	5	0
	9	5	0

12

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

13

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

14

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

15

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

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