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곱셈: 2 x 21X9

1

		1	9
		5	4
		7	6
	9	5	0
1	0	2	6

2

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

3

		7	8
		2	0
			0
1	5	6	0
1	5	6	0

4

		4	4
		5	0
			0
2	2	0	0
2	2	0	0

5

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

6

		1	3
		6	1
		1	3
	7	8	0
	7	9	3

7

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

8

		4	5
		3	7
	3	1	5
1	3	5	0
1	6	6	5

9

		4	6
		8	1
		4	6
3	6	8	0
3	7	2	6

10

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

11

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

12

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

13

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

14

		4	4
		7	2
		8	8
3	0	8	0
3	1	6	8

15

		1	4
		1	0
			0
	1	4	0
	1	4	0

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