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곱셈: 2 x 21X1

1

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

2

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

3

		3	9
		2	8
	3	1	2
	7	8	0
1	0	9	2

4

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

5

		5	7
		4	0
			0
2	2	8	0
2	2	8	0

6

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

7

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

8

		1	2
		1	1
		1	2
	1	2	0
	1	3	2

9

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

10

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

11

		4	8
		2	0
			0
	9	6	0
	9	6	0

12

		9	4
		8	5
	4	7	0
7	5	2	0
7	9	9	0

13

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

14

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

15

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

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