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곱셈: 2 x 2

1

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

2

		4	5
		3	0
			0
1	3	5	0
1	3	5	0

3

		6	0
		1	1
		6	0
	6	0	0
	6	6	0

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

		3	0
		1	3
		9	0
	3	0	0
	3	9	0

14

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

15

		3	9
		2	0
			0
	7	8	0
	7	8	0

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