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곱셈: 2 x 21X9

1

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

2

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

3

		3	7
		1	5
	1	8	5
	3	7	0
	5	5	5

4

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

5

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

6

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

7

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

8

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

9

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

10

		7	6
		5	8
	6	0	8
3	8	0	0
4	4	0	8

11

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

12

		1	2
		8	1
		1	2
	9	6	0
	9	7	2

13

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

14

		9	0
		4	6
	5	4	0
3	6	0	0
4	1	4	0

15

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

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