#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main()
{
    int N, M;
    cin >> N >> M;
    vector<int> A(N);
    for (auto &a : A)
        cin >> a;
    A.push_back(0);
    ll cnt = 0, tot = 0;
    for (auto &a : A)
    {
        if (a & 1 == 1)
        {
            cnt++;
            tot += a;
        }
        else
        {
            if (cnt >= M)
                cout << tot << endl;
            cnt = 0;
            tot = 0;
        }
    }
}