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곱셈: 2 x 2

1

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

2

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

3

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

4

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

5

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

6

		1	5
		7	7
	1	0	5
1	0	5	0
1	1	5	5

7

		4	4
		1	1
		4	4
	4	4	0
	4	8	4

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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