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곱셈: 2 x 21X0

1

		1	0
		2	3
		3	0
	2	0	0
	2	3	0

2

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

3

		3	0
		9	8
	2	4	0
2	7	0	0
2	9	4	0

4

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

5

		7	8
		6	0
			0
4	6	8	0
4	6	8	0

6

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

7

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

8

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

9

		9	7
		4	1
		9	7
3	8	8	0
3	9	7	7

10

		2	2
		2	8
	1	7	6
	4	4	0
	6	1	6

11

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

12

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

13

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

14

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

15

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

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