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곱셈: 2 x 2

1

		1	9
		7	1
		1	9
1	3	3	0
1	3	4	9

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		5	5
		5	6
	3	3	0
2	7	5	0
3	0	8	0

11

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

12

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

13

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

14

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

15

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

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