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곱셈: 2 x 2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

		1	6
		5	6
		9	6
	8	0	0
	8	9	6

10

		1	0
		1	2
		2	0
	1	0	0
	1	2	0

11

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

12

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

13

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

14

		6	4
		1	1
		6	4
	6	4	0
	7	0	4

15

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

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