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곱셈: 2 x 2

1

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

2

		3	0
		1	0
			0
	3	0	0
	3	0	0

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		1	7
		3	5
		8	5
	5	1	0
	5	9	5

12

		9	1
		4	0
			0
3	6	4	0
3	6	4	0

13

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

14

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

15

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

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