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곱셈: 2 x 25X5

1

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

2

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

3

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

4

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

5

		7	3
		6	6
	4	3	8
4	3	8	0
4	8	1	8

6

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

7

		1	1
		2	0
			0
	2	2	0
	2	2	0

8

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

9

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

10

		9	0
		1	0
			0
	9	0	0
	9	0	0

11

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

12

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

13

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

14

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

15

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

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