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곱셈: 4 x 22X7

1

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

2

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

3

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

4

		4	0	5	6
				1	0
					0
	4	0	5	6	0
	4	0	5	6	0

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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