#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, k;
cin >> n >> k;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
const int inf = (int) 1e9;
vector<vector<int>> dp(n, vector<int>(k, inf));
for (int i = 0; i < n; i++) {
int mx = 0;
for (int j = i; j >= 0; j--) {
mx = max(mx, a[j]);
for (int l = 1; l < k; l++) {
dp[i][l] = min(dp[i][l], dp[j][l - 1] + mx);
}
}
dp[i][0] = min(dp[i][0], mx);
}
cout << dp[n - 1][k - 1] << '\n';
return 0;
}
