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곱셈: 3 x 21X0

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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