#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  int n, m; cin >> n >> m;
  V<> a(n); for (auto&& e : a) cin >> e;
  V<lint> c(n + 1);
  for (int i = 0; i < n; ++i) {
    c[i + 1] = c[i] + a[i];
  }
  int t = 0;
  for (int i = 0; i < n; ++i) {
    if (a[i] & 1) {
      ++t;
      if (t >= m and (i == n - 1 or ~a[i + 1] & 1)) {
        cout << c[i + 1] - c[i - t + 1] << '\n';
      }
    } else {
      t = 0;
    }
  }
}