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SICT002 - Triangle

Өгөгдсөн гурвалжны периметрийг ол.

Input

Гурвалжны талууд бүхэл тоогоор нэг мөрөнд зайгаар тусгаарлагдан өгөгдөнө.

Output

Output description...

Example

Input:
3 4 5
Output:
12

Added by:B@TJ@RG@L
Date:2020-02-11
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:C C++ 4.3.2 PYTHON

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