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곱셈: 2 x 22X7

1

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

2

		9	1
		6	9
	8	1	9
5	4	6	0
6	2	7	9

3

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

4

		5	2
		9	2
	1	0	4
4	6	8	0
4	7	8	4

5

		6	6
		4	3
	1	9	8
2	6	4	0
2	8	3	8

6

		4	1
		3	9
	3	6	9
1	2	3	0
1	5	9	9

7

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

8

		9	9
		5	0
			0
4	9	5	0
4	9	5	0

9

		6	2
		9	7
	4	3	4
5	5	8	0
6	0	1	4

10

		1	1
		2	0
			0
	2	2	0
	2	2	0

11

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

12

		4	0
		5	7
	2	8	0
2	0	0	0
2	2	8	0

13

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

14

		5	0
		4	2
	1	0	0
2	0	0	0
2	1	0	0

15

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

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