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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

		5	3
		2	3
	1	5	9
1	0	6	0
1	2	1	9

15

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

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