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곱셈: 2 x 21X4

1

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

2

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

3

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

4

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

5

		4	0
		7	5
	2	0	0
2	8	0	0
3	0	0	0

6

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

7

		1	3
		6	1
		1	3
	7	8	0
	7	9	3

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

		1	2
		9	1
		1	2
1	0	8	0
1	0	9	2

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