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곱셈: 2 x 21X2

1

		1	2
		5	5
		6	0
	6	0	0
	6	6	0

2

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

3

		2	3
		3	9
	2	0	7
	6	9	0
	8	9	7

4

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

5

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

6

		9	2
		4	5
	4	6	0
3	6	8	0
4	1	4	0

7

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

8

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

9

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

10

		5	5
		1	2
	1	1	0
	5	5	0
	6	6	0

11

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

12

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

13

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

14

		5	9
		5	2
	1	1	8
2	9	5	0
3	0	6	8

15

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

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