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곱셈: 2 x 14X0

	4	0
		5
2	0	0

	1	5
		9
1	3	5

	3	9
		6
2	3	4

		1	5
			6
		9	0

	3	4
		6
2	0	4

	3	0
		6
1	8	0

	6	1
		2
1	2	2

	3	0
		9
2	7	0

	3	1
		9
2	7	9

	2	8
		7
1	9	6

	5	2
		2
1	0	4

	6	1
		5
3	0	5

		4	8
			2
		9	6

	2	7
		5
1	3	5

	4	2
		7
2	9	4