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

#define all(x) (x).begin(),(x).end()
#define SP <<" "<<
#define MOD 1000000007
#define IINF 1000000000
#define LINF 1000000000000000000

typedef long long LL;
typedef long double LD;

int main(){
  int n,m;
  cin >> n >> m;
  LL total=0;
  int count=0;
  LL a;
  for(int i=0;i<n;i++){
    cin >> a;
    if(a%2){
      count++;
      total+=a;
    }else{
      if(count!=0){
        if(count>=m) cout << total << endl;
        count=0;
        total=0;
      }
    }
  }
  if(count!=0) if(count>=m)  cout << total << endl;
  return 0;
}