#include <bits/stdc++.h>
#define f first
#define s second
#define ll long long
using namespace std;
const int maxn=5e3+5;
int n,k;
int a[maxn];
int dp[maxn][maxn],Min[maxn];
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
cin>>n>>k;
for(int i=1;i<=n;i++) cin>>a[i];
for(int i=0;i<=n;i++){
for(int j=0;j<=k;j++) dp[i][j]=1e9;
}
dp[0][0]=0;
for(int j=1;j<=k;j++){
Min[0]=dp[0][j-1];
for(int i=1;i<=n;i++){
Min[i]=min(Min[i-1],dp[i-1][j-1]-a[i]);
}
for(int i=1;i<=n;i++){
dp[i][j]=min(dp[i][j],Min[i]+a[i]+1);
}
}
cout<<dp[n][k];
}
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