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

int main() {
  int N, M;
  cin >> N >> M;
  vector<int> A(N);
  for (int i = 0; i < N; i++) cin >> A.at(i);
  for (long i = 0, sum = 0, cnt = 0; i < N; i++) {
    if (A.at(i) % 2) {
      sum += A.at(i), cnt++;
      if (cnt == M) {
        cout << sum << "\n";
        sum = cnt = 0;
      }
    } else {
      sum = cnt = 0;
    }
  }
}