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곱셈: 2 x 21X9

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

		8	7
		1	0
			0
	8	7	0
	8	7	0

10

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

11

		6	2
		4	5
	3	1	0
2	4	8	0
2	7	9	0

12

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

13

		4	4
		8	5
	2	2	0
3	5	2	0
3	7	4	0

14

		4	3
		9	5
	2	1	5
3	8	7	0
4	0	8	5

15

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

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