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덧셈: 2 + 1

1

		1	5
			3
		1	8

2

		5	5
			3
		5	8

3

		5	3
			1
		5	4

4

		5	9
			4
		6	3

5

		5	4
			9
		6	3

6

		2	9
			5
		3	4

7

		3	6
			5
		4	1

8

		2	8
			3
		3	1

9

		6	6
			1
		6	7

10

		7	0
			2
		7	2

11

		5	6
			1
		5	7

12

		1	7
			7
		2	4

13

		1	9
			6
		2	5

14

		7	9
			8
		8	7

15

		1	8
			2
		2	0

▲

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