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곱셈: 3 x 21X5

1

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

2

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

3

		5	1	0
			1	9
	4	5	9	0
	5	1	0	0
	9	6	9	0

4

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

5

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

6

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

7

		1	7	5
			4	6
	1	0	5	0
	7	0	0	0
	8	0	5	0

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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