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곱셈: 2 x 21X8

1

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

2

		7	5
		5	3
	2	2	5
3	7	5	0
3	9	7	5

3

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

4

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

5

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

6

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

7

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

8

		8	5
		4	0
			0
3	4	0	0
3	4	0	0

9

		6	0
		1	1
		6	0
	6	0	0
	6	6	0

10

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

11

		1	1
		8	7
		7	7
	8	8	0
	9	5	7

12

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

13

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

14

		1	1
		7	0
			0
	7	7	0
	7	7	0

15

		3	6
		2	0
			0
	7	2	0
	7	2	0

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