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곱셈: 2 x 21X3

1

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

2

		6	0
		3	0
			0
1	8	0	0
1	8	0	0

3

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

4

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

5

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

6

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

7

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

8

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

9

		2	8
		1	0
			0
	2	8	0
	2	8	0

10

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

11

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

12

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

13

		2	4
		9	0
			0
2	1	6	0
2	1	6	0

14

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

15

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

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