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곱셈: 2 x 21X0

1

		1	0
		3	3
		3	0
	3	0	0
	3	3	0

2

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

3

		2	3
		9	9
	2	0	7
2	0	7	0
2	2	7	7

4

		9	6
		5	8
	7	6	8
4	8	0	0
5	5	6	8

5

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

6

		1	6
		1	0
			0
	1	6	0
	1	6	0

7

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

8

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

9

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

10

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

11

		8	6
		1	0
			0
	8	6	0
	8	6	0

12

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

13

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

14

		2	4
		4	0
			0
	9	6	0
	9	6	0

15

		5	0
		5	5
	2	5	0
2	5	0	0
2	7	5	0

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