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곱셈: 2 x 21X8

1

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

2

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

3

		1	1
		1	1
		1	1
	1	1	0
	1	2	1

4

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

5

		2	5
		2	2
		5	0
	5	0	0
	5	5	0

6

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

7

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

8

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

9

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

10

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

11

		1	1
		3	1
		1	1
	3	3	0
	3	4	1

12

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

13

		9	6
		5	5
	4	8	0
4	8	0	0
5	2	8	0

14

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

15

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

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