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곱셈: 2 x 22X4

1

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

2

		2	1
		5	0
			0
1	0	5	0
1	0	5	0

3

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

4

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

5

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

6

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

7

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

8

		8	5
		8	5
	4	2	5
6	8	0	0
7	2	2	5

9

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

10

		1	9
		3	0
			0
	5	7	0
	5	7	0

11

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

12

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

13

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

14

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

15

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

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