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EI2122Q1M1 - Sum of K distinct Largest

Given n integers, find the sum of at most k largest distinct values.

Input

-          The first line contains two integers n, k (1 ≤ n, m ≤ 105).

-          The second line contains n integers (-109 ≤ ai ≤ 109).

Output

The required sum.

 

Sample

Input

Output

10 3

9 5 21 15 16 1  5 1 9 21

52

10 8

9 5 21 15 16 1  5 1 9 21

103


Added by:Ha Minh Ngoc
Date:2021-11-14
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: GOSU
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