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곱셈: 2 x 21X6

1

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

2

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

3

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

4

		3	3
		9	3
		9	9
2	9	7	0
3	0	6	9

5

		1	1
		5	3
		3	3
	5	5	0
	5	8	3

6

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

7

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

8

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

9

		2	4
		4	0
			0
	9	6	0
	9	6	0

10

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

11

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

12

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

13

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

14

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

15

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

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