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곱셈: 2 x 2

1

		2	0
		4	2
		4	0
	8	0	0
	8	4	0

2

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

3

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

4

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

5

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

6

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

7

		1	5
		6	5
		7	5
	9	0	0
	9	7	5

8

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

9

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

10

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

11

		7	4
		6	0
			0
4	4	4	0
4	4	4	0

12

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

13

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

14

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

15

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

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