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곱셈: 2 x 21X3

1

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

2

		3	6
		2	0
			0
	7	2	0
	7	2	0

3

		7	5
		7	9
	6	7	5
5	2	5	0
5	9	2	5

4

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

5

		5	4
		5	5
	2	7	0
2	7	0	0
2	9	7	0

6

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

7

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

8

		2	6
		1	0
			0
	2	6	0
	2	6	0

9

		4	5
		2	2
		9	0
	9	0	0
	9	9	0

10

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

11

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

12

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

13

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

14

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

15

		1	6
		1	0
			0
	1	6	0
	1	6	0

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