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곱셈: 2 x 23X5

1

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

2

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

3

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

4

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

5

		2	5
		8	8
	2	0	0
2	0	0	0
2	2	0	0

6

		8	4
		3	8
	6	7	2
2	5	2	0
3	1	9	2

7

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

8

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

9

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

10

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

11

		3	6
		5	6
	2	1	6
1	8	0	0
2	0	1	6

12

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

13

		4	8
		6	2
		9	6
2	8	8	0
2	9	7	6

14

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

15

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

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