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곱셈: 2 x 21X0

1

		1	0
		8	1
		1	0
	8	0	0
	8	1	0

2

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

3

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

4

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

5

		2	3
		4	8
	1	8	4
	9	2	0
1	1	0	4

6

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

7

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

8

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

9

		4	1
		5	6
	2	4	6
2	0	5	0
2	2	9	6

10

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

11

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

12

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

13

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

14

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

15

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

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