#include <iostream>

using lint = long long;

int main() {
    int N, M;
    std::cin >> N >> M;

    lint sum = 0;
    int cnt = 0;
    for (int i = 0; i < N; ++i) {
        lint a;
        std::cin >> a;
        if (a & 1) {
            sum += a;
            ++cnt;
        } else {
            if (cnt >= M) std::cout << sum << std::endl;
            cnt = 0;
            sum = 0;
        }
    }
    if (cnt >= M) std::cout << sum << std::endl;
    return 0;
}