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곱셈: 2 x 21X9

1

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

2

		2	0
		5	5
	1	0	0
1	0	0	0
1	1	0	0

3

		2	3
		1	2
		4	6
	2	3	0
	2	7	6

4

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

5

		6	0
		5	5
	3	0	0
3	0	0	0
3	3	0	0

6

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

7

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

8

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

9

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

10

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

11

		9	9
		2	0
			0
1	9	8	0
1	9	8	0

12

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

13

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

14

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

15

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

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