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곱셈: 2 x 22X7

1

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

2

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

3

		4	4
		7	0
			0
3	0	8	0
3	0	8	0

4

		1	9
		9	1
		1	9
1	7	1	0
1	7	2	9

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

		1	6
		7	2
		3	2
1	1	2	0
1	1	5	2

13

		1	2
		6	0
			0
	7	2	0
	7	2	0

14

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

15

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

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