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곱셈: 2 x 21X1

1

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

2

		1	0
		3	9
		9	0
	3	0	0
	3	9	0

3

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

4

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

5

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

6

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

7

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

8

		5	3
		9	6
	3	1	8
4	7	7	0
5	0	8	8

9

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

10

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

11

		4	9
		7	7
	3	4	3
3	4	3	0
3	7	7	3

12

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

13

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

14

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

15

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

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