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덧셈: 2 + 1

1

		5	6
			9
		6	5

2

		3	4
			4
		3	8

3

		2	1
			3
		2	4

4

		1	3
			5
		1	8

5

		6	3
			4
		6	7

6

		7	5
			7
		8	2

7

		3	4
			4
		3	8

8

		5	4
			9
		6	3

9

		2	8
			3
		3	1

10

		2	7
			7
		3	4

11

		2	5
			5
		3	0

12

		4	0
			5
		4	5

13

		2	4
			6
		3	0

14

		2	6
			3
		2	9

15

		4	8
			3
		5	1

▲

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