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곱셈: 2 x 22X4

1

		2	4
		1	3
		7	2
	2	4	0
	3	1	2

2

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

3

		3	7
		3	0
			0
1	1	1	0
1	1	1	0

4

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

5

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

6

		4	9
		9	6
	2	9	4
4	4	1	0
4	7	0	4

7

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

8

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

9

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

10

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

11

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

12

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

13

		1	1
		1	8
		8	8
	1	1	0
	1	9	8

14

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

15

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

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