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곱셈: 4 x 21X7

1

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

2

		8	0	1	2
				1	1
		8	0	1	2
	8	0	1	2	0
	8	8	1	3	2

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

		9	4	5	1
				1	0
					0
	9	4	5	1	0
	9	4	5	1	0

12

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

13

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

14

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

15

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

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