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곱셈: 2 x 25X5

1

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

2

		2	9
		2	0
			0
	5	8	0
	5	8	0

3

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

4

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

5

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

6

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

7

		2	9
		1	0
			0
	2	9	0
	2	9	0

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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