#include "bits/stdc++.h"
#define in std::cin
#define out std::cout
#define rep(i,N) for(LL i=0;i<N;++i)
typedef long long int LL;

int main()
{
	LL N, M;
	in >> N >> M;
	std::vector<LL>A(N);
	rep(i, N) in >> A[i];

	rep(i, N)
	{
		LL sum = 0, cnt = 0;
		for (LL j = i; j < N; ++j)
		{
			if (A[j] % 2 == 0)
			{
				if (sum > 0 && cnt >= M) out << sum << std::endl;
				i = j;
				break;
			}
			sum += A[j];
			++cnt;
			if (j == N - 1)
			{
				if (sum > 0 && cnt >= M) out << sum << std::endl;
				i = j;
				break;
			}
		}
	}
}