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곱셈: 2 x 21X4

1

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

2

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

3

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

4

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

5

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

6

		6	2
		7	3
	1	8	6
4	3	4	0
4	5	2	6

7

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

8

		1	0
		3	0
			0
	3	0	0
	3	0	0

9

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

10

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

11

		7	7
		3	7
	5	3	9
2	3	1	0
2	8	4	9

12

		4	9
		7	3
	1	4	7
3	4	3	0
3	5	7	7

13

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

14

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

15

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

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