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곱셈: 2 x 21X9

1

		1	9
		4	6
	1	1	4
	7	6	0
	8	7	4

2

		3	7
		1	3
	1	1	1
	3	7	0
	4	8	1

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		3	0
		5	6
	1	8	0
1	5	0	0
1	6	8	0

12

		7	6
		3	0
			0
2	2	8	0
2	2	8	0

13

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

14

		9	0
		1	7
	6	3	0
	9	0	0
1	5	3	0

15

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

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