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곱셈: 2 x 2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

		9	0
		6	0
			0
5	4	0	0
5	4	0	0

14

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

15

		5	0
		3	0
			0
1	5	0	0
1	5	0	0

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