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곱셈: 2 x 2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		2	6
		1	0
			0
	2	6	0
	2	6	0

11

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

12

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

13

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

14

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

15

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

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