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곱셈: 2 x 23X4

1

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

2

		7	5
		2	8
	6	0	0
1	5	0	0
2	1	0	0

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		5	0
		6	4
	2	0	0
3	0	0	0
3	2	0	0

12

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

13

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

14

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

15

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

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