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덧셈: 2 + 1

1

		4	3
			6
		4	9

2

		1	6
			4
		2	0

3

		2	1
			3
		2	4

4

		1	7
			6
		2	3

5

		6	6
			4
		7	0

6

		2	2
			5
		2	7

7

		1	3
			9
		2	2

8

		2	5
			2
		2	7

9

		8	5
			2
		8	7

10

		7	8
			8
		8	6

11

		6	2
			9
		7	1

12

		2	4
			6
		3	0

13

		5	5
			1
		5	6

14

		2	4
			2
		2	6

15

		3	0
			6
		3	6

▲

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