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곱셈: 2 x 21X2

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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