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곱셈: 2 x 21X1

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

		5	5
		7	0
			0
3	8	5	0
3	8	5	0

11

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

12

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

13

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

14

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

15

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

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