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곱셈: 2 x 25X5

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		2	0
		2	9
	1	8	0
	4	0	0
	5	8	0

12

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

13

		6	0
		5	5
	3	0	0
3	0	0	0
3	3	0	0

14

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

15

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

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