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곱셈: 2 x 2

1

		2	2
		1	1
		2	2
	2	2	0
	2	4	2

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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