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곱셈: 2 x 21X7

1

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

2

		1	1
		6	1
		1	1
	6	6	0
	6	7	1

3

		2	9
		2	3
		8	7
	5	8	0
	6	6	7

4

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

5

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

6

		2	5
		8	5
	1	2	5
2	0	0	0
2	1	2	5

7

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

8

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

9

		5	8
		7	4
	2	3	2
4	0	6	0
4	2	9	2

10

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

11

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

12

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

13

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

14

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

15

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

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