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곱셈: 3 x 21X5

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

		6	7	0
			1	6
	4	0	2	0
	6	7	0	0
1	0	7	2	0

10

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

11

		3	8	1
			5	0
				0
1	9	0	5	0
1	9	0	5	0

12

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

13

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

14

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

15

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

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