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

#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
//const ll mod = 1000000007;

int main() {
    //cout.precision(10);
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll N, M;
    cin >> N >> M;
    ll A[100050];
    A[0] = 0;
    for(int i = 1; i <= N; i++) cin >> A[i];
    A[N+1] = 0;
    ll index = 1;
    ll sum = 0;
    for(int i = 1; i <= N + 1; i++) {
        if(A[i] % 2 == 1) {
            sum += A[i];
            continue;
        }
        if(i - index >= M) {
            cout << sum << endl;
        }
        sum = 0;
        index = i + 1;
    }
    return 0;
}