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곱셈: 2 x 22X4

1

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

2

		6	8
		5	0
			0
3	4	0	0
3	4	0	0

3

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

4

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

5

		8	5
		5	7
	5	9	5
4	2	5	0
4	8	4	5

6

		5	8
		1	5
	2	9	0
	5	8	0
	8	7	0

7

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

8

		5	5
		9	5
	2	7	5
4	9	5	0
5	2	2	5

9

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

10

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

11

		9	1
		8	1
		9	1
7	2	8	0
7	3	7	1

12

		4	7
		9	2
		9	4
4	2	3	0
4	3	2	4

13

		1	0
		3	0
			0
	3	0	0
	3	0	0

14

		1	1
		1	9
		9	9
	1	1	0
	2	0	9

15

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

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