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곱셈: 4 x 21X1

1

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

2

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

3

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

4

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

5

		3	7	1	2
				1	0
					0
	3	7	1	2	0
	3	7	1	2	0

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

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

14

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

15

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

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