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곱셈: 2 x 21X9

1

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

2

		1	1
		6	4
		4	4
	6	6	0
	7	0	4

3

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

4

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

5

		8	4
		4	0
			0
3	3	6	0
3	3	6	0

6

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

7

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

8

		3	3
		9	9
	2	9	7
2	9	7	0
3	2	6	7

9

		4	5
		6	5
	2	2	5
2	7	0	0
2	9	2	5

10

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

11

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

12

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

13

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

14

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

15

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

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