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곱셈: 2 x 21X9

1

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

2

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

3

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

4

		4	7
		2	0
			0
	9	4	0
	9	4	0

5

		1	1
		1	4
		4	4
	1	1	0
	1	5	4

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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