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곱셈: 2 x 25X5

1

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

2

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

3

		9	3
		2	0
			0
1	8	6	0
1	8	6	0

4

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

5

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

6

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

7

		4	3
		7	3
	1	2	9
3	0	1	0
3	1	3	9

8

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

9

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

10

		4	4
		9	4
	1	7	6
3	9	6	0
4	1	3	6

11

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

12

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

13

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

14

		1	4
		4	1
		1	4
	5	6	0
	5	7	4

15

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

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