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곱셈: 4 x 21X5

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

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

13

		5	4	5	9
				2	2
	1	0	9	1	8
1	0	9	1	8	0
1	2	0	0	9	8

14

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

15

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

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