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곱셈: 2 x 2

1

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

2

		7	1
		6	0
			0
4	2	6	0
4	2	6	0

3

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

4

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

5

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

6

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

7

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

8

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

9

		6	2
		4	4
	2	4	8
2	4	8	0
2	7	2	8

10

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

11

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

12

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

13

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

14

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

15

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

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