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곱셈: 2 x 21X1

1

		1	1
		7	1
		1	1
	7	7	0
	7	8	1

2

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

3

		9	3
		1	0
			0
	9	3	0
	9	3	0

4

		1	4
		1	1
		1	4
	1	4	0
	1	5	4

5

		1	2
		1	8
		9	6
	1	2	0
	2	1	6

6

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

7

		9	3
		2	7
	6	5	1
1	8	6	0
2	5	1	1

8

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

9

		5	5
		6	4
	2	2	0
3	3	0	0
3	5	2	0

10

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

11

		3	7
		2	8
	2	9	6
	7	4	0
1	0	3	6

12

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

13

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

14

		4	3
		2	9
	3	8	7
	8	6	0
1	2	4	7

15

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

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